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Table of Contents

Voice Connections

Voice Connections

The voice commands apply to the setting up, configuring, and statistical reporting for voice connections (including FAX). In addition to the command descriptions, this chapter describes how to set up the voice connection, configure voice redundancy, use VAD, and configure voice channel utilization.

Voice connections exist as ports on circuit lines that are supported by either a CDP in an IPX or a CVM in an IGX 8400 series. The back card for the CDP or CVM is either a BC-T1, BC-E1, or BC-J1.

Setting Up a Voice Connection

The following steps describe how to set up a voice connection:

Step 1   First configure the voice channel at each end of the connection. The channel is expressed as card slot.channel. For example, 6.3 is channel 3 in card slot 6. The configurable parameters and their associated commands are as follows.

· cnfchadv

Configures the channel for Adaptive Voice (ADV). This command enables or disables adaptive voice compression for one or a range of voice channels. The feature must be configured at both ends of the channel.

· cnfchdl

Configures the dial type for the channel. The options are inband (default), pulse and user configured.

· cnfchec

Configure the echo canceller for the channel. The command enables or disable the echo canceller for a range of voice channel, sets the echo return loss to high or low and enables/disables the tone disabler, convergence, and non-linear processing.

· cnfchgn

Configures the amount of gain inserted in a voice channel.

· cnfcond

Configures a conditioning template for the channel.

· cnfcondsc

Configures a connection descriptor for the channel.

· cnfrcvsig

Configures receive signalling for the channel.

· cnfxmtsig

Configures transmit signalling for the channel.

· cnfvchtp

Configures a voice interface type for the channel.

· cnfchutl

Configures the channel utilization (refer to Chapter 11, "Optimizing Traffic Routing and Bandwidth").

· addyred

Enables voice channel redundancy.

Step 2   Add the connection with the addcon command. The above configuration must have been completed at each end before the connection can be added.

Configuring Voice Channel Redundancy

You can configure voice channels for redundancy by installing two identical sets of front and back card pairs in adjacent slots and connecting to the customer-equipment through a Y-cable, then:

Using VAD and Configuring Voice Channel Utilization

The bandwidth savings you gain by using VAD are less than optimal if you do not set the utilization of the voice channels to a reasonable value. To configure the utilization for voice channels, use the cnfchutl command.

Summary of Commands

The following list shows the full command name and starting page for the description of each command.


Table 7-1: Voice Commands
Mnemonic Description Page

addcon

Add connection

7-4

cnfchadv

Configure channel adaptive voice

7-7

cnfchdl

Configure channel dial type

7-9

cnfchec

Configure channel echo canceller

7-12

cnfchgn

Configure channel gain insertion

7-14

cnfcond

Configure conditioning template

7-16

cnfcondsc

Configure connection description

7-18

cnfrcvsig

Configure receive signalling

7-20

cnfvchtp

Configure voice channel interface type

7-22

cnfxmtsig

Configure transmit signalling

7-26

delcon

Delete connection

7-28

dspchcnf

Display channel configuration

7-30

dspchdlcnf

Display channel dial type configuration

7-32

dspchec

Display channel echo canceller

7-34

dspcon

Display connection

7-36

dspcond

Display conditioning template

7-38

dspcons

Display connections

7-40

dspconst

Display connection state

7-43

dspsigqual

Display signal qualifiers

7-45

dspsvcst

Display voice SVC statistics

7-47

prtchcnf

Print channel configuration

7-49

prtchdlcnf

Printdial type configuration

7-50

prtcons

Print connections

7-51

addcon

Establishes the channel connections between nodes in the network. You can add connections to any slot that has a CDP or CVM. Before you add a connection, determine the compression type you want for the connection. Table 7-2 describes what you enter for the type parameter for each rate and compression variable. Two possible types are available for each rate and

When connecting sets of voice channels, you do not have to specify the full channel set for this end of the connection. You only have to designate the first channel in the set. For example, to connect channels 13.1-10 at alpha to channels 12.5-14 at beta, you could enter "addcon 13.1-10 beta 12.5". In this example, channel 13.1 is connected to channel 12.5, channel 13.2 is connected to channel 12.6 and so on.

Connections are added with a default class of service (COS). The value of COS is the number of seconds the node waits before it reroutes the connection after a failure. The COS applies to various types of connections other than voice and therefore is described elsewhere (see the cnfcos description in the chapter titled "Optimizing Traffic Routing and Bandwidth.")


Table 7-2: Types of CDP and CVM Operation
Rate VAD No VAD Comment

64 Kbps

v

p

32 Kbps

c32

a32

32 Kbps for FAX

c32d

a32d

Specifies 32 Kbps specially optimized for FAX. c32d incorporates Voice Activity Detection (VAD).

24 Kbps ADPCM

c24

a24

16 Kbps no ZCS

c16z

a16z

For non-ZCS only.

16 Kbps

c16

a16

ZCS is permissible. c16 and a16 use non-standard compression algorithms.

The difference between a PCM (p) connection and a transparent (t) connection is that the D4 frame signalling bits are identified and processed as signalling information with PCM connections. PCM connections permit gain adjustment to be applied to the connection. Transparent connections treat all bits, including signalling bits, as data bits and disables any gain adjustment conversion that you may have specified.

The number in the type field indicates the ADPCM rates in Kbps. The "z" suffix indicates that 00 code level is used. Type a16 or c16 uses only 01, 10, and 11 binary codes to avoid long strings of zeroes. Type a16z and c16z connections use the 00 code and are automatically configured to avoid ZCS lines (*Z).

Full Name

Add a connection

Syntax

addcon <local channel> <remote node> <remote channel> <type> [avoid]

Related Commands

delcon, dncon, dspcon, dspcons, upcon, cnfcos

Attributes

Privilege

1-2

Jobs

Yes

Log

Yes

Node

IPX, IGX 8400 series

Lock

Yes

Example 1

addcon 7.2 beta 8.2 v

Description

Add a "v" type voice connection. This command connects channel 7.2 on node alpha to channel 8.2 on node beta. A prompt appears asking you to confirm the proposed connections.

Connection type is "v," "class of service" (COS) is "2," compression is VAD, and ownership is local. For an explanation of COS, see the cnfcos description in the chapter titled "Optimizing Traffic Routing and Bandwidth." Because you are entering the addcon command at node alpha, the node alpha is the owner of the connection.

System Response
alpha TRM YourID:1 IPX 16 8.4 Mar. 16 1996 09:37 PST Local Remote Remote Route Channel NodeName Channel State Type Compression Code Avoid COS O 7.2 beta 8.2 Ok v VAD 2 L 2 Last Command: addcon 7.2 beta 8.2 v Next Command:
Table 7-3: addcon—Parameters
Parameter Description

local channel

Specifies the local channel or set of channels to connect in the following format. Brackets indicate that a range of channels can be specified.

  slot.chan [-chan]

node

Specifies the name of the node at the other end of the connection. For a DACS-type connection (where channels on a node are connected to channels on the same node), use the local node name.

remote channel

Specifies the local channel or set of channels to connect in the following format. Brackets indicate that a range of channels can be specified.

  slot.chan [-chan]

type

Specifies the voice connection type. Refer to the command description for valid voice connection types and compression on the CDP or CVM.
Table 7-4: addcon—Optional Parameters
Parameter Description

avoid

Specifies the type of trunk for the connection to avoid. The default is no avoidance. The choices are:

*s avoid satellite trunks.

*t avoid terrestrial trunks.

*z avoid trunks using zero code suppression techniques that modify any bit position to prevent long strings of zeros.

cnfchadv

Enables the Adaptive Voice feature for individual channels. The Adaptive Voice feature must also exist at each node that terminates the connection. The channel-specific cnfchadv has no effect at nodes that do not have Adaptive Voice.

If the Adaptive Voice feature is enabled for a channel with a "c" or "v" connections, VAD is automatically disabled on that channel when trunk bandwidth is available and enabled when trunk bandwidth is needed. If the Adaptive Voice feature is not enabled for a channel with a "c" or "v" connections, VAD is always turned on for that channel. In order for a voice ("c" or "v") connection to use Adaptive Voice, both ends must have Adaptive Voice enabled with the cnfchadv command.

Full Name

Configure channel adaptive voice

Syntax

cnfchadv <channel(s)> <y/n>

Related Commands

dspchcnf

Attributes

Privilege

1-2

Jobs

Yes

Log

Yes

Node

IPX, IGX 8400 series

Lock

Yes

Example 1

cnfchadv 14.1 e

Description

Enable Adaptive Voice for channel 14.1.

System Response
alpha TRM YourID:1 IPX 16 8.4 Mar. 16 1996 09:43 PST % Adaptive Gain (dB) Dial OnHk Cond Channels Util Voice In Out Type Interface Type A B C D Crit. 14.1-24 40 Enabled 0 - Inband Unconfig ? ? - - a Last Command: cnfchadv 14.1 e Next Command:
Table 7-5: cnfchadv—Parameters
Parameter Description

channel

Specifies the channel or range of channels over which you specify Adaptive Voice.

e

Enables Adaptive Voice (default setting).

d

Disables Adaptive Voice.

cnfchdl

Configures the dial type for a channel or set of channels. The dial type may be inband, pulse, or user configured. The user configured option allows non-default timing values to be used. The parameters associated with the cnfchdl command are timing constants used to ensure that signalling pulses are not distorted in time by transmission through the network.

If you select inband, the node assumes that the A and B bits are not used for loop-disconnect dialing. Therefore, any change in signalling bit status goes in a packet to the far end of the connection.

If you select pulse, the transmitting node waits (normally 72 msec) after an A or B bit transition for another transition to arrive. If one does, the new transition is incorporated into the same signalling packet that is sent to the far end of the connection. This increases the delay of the signalling transition across the network, but decreases the amount of trunk bandwidth used for signalling.

If the default timings are not correct for the network, you must configure the options. The dialing type should be set correctly. If a connection-designated pulse is used for inband signalling, a greater then necessary delay across the network results. If a connection-designated inband is used for pulse signalling, the relative timing of signalling transitions may be lost and so distort the pulses.

Full Name

Configure dial type for channels

Syntax

cnfchdl <channel(s)> <dial_type> [<sig_delay> <min_wink> <int_dig_time>
<playout delay>]

Related Commands

dspchcnf, dspchdlcnf

Attributes

Privilege

1-2

Jobs

Yes

Log

Yes

Node

IPX, IGX 8400 series

Lock

Yes

Example 1

cnfchdl 14.1 p

Description

Configure the dial type of channel 14.1 to pulse.

System Response
alpha TRM YourID:1 IPX 16 8.4 Mar. 16 1996 09:46 PST % Adaptive Gain (dB) Dial OnHk Cond Channels Util Voice In Out Type Interface Type A B C D Crit. 14.1 40 Enabled 0 - Pulse Unconfig ? ? - - a 14.2-24 40 Enabled 0 - Inband Unconfig ? ? - - a Last Command: cnfchdl 14.1 p Next Command:
Table 7-6: cnfchdl—Parameters
Parameter Description

channel

Specifies the channel or range of channels over which to configure dial type.

dial type

Specifies the dial type to assign. The three possible dial types are:

i inband
p pulse
u user configured

Inband is the default dial type. If you designate "u" for a user-configured dial type, you are prompted, as applicable, from among the following: sig delay, min wink, interdigit time, and playout delay.
Table 7-7: cnfchdl—Optional Parameters
Parameter Description

signalling delay

Specifies the signalling delay, in milliseconds, to assign to the user-configured dial type. The range is from 12 to 96. The value entered is rounded to the closest multiple of 1.5 ms.

minimum wink

Specifies the minimum wink, in milliseconds, to assign to the user-configured dial type. The range is from 3 to 765. The value entered is rounded down to the nearest whole multiple of 3 ms. (This is not applicable to CDP or CVM channels.)

interdigit time

Specifies the interdigit time, in milliseconds, to assign to the user-configured dial type. The range is from 3 to 765. The value entered is rounded down to the nearest whole multiple of 3 ms. This is not applicable to a CDP or CVM channel.

playout delay

Specifies the signaling delay, in milliseconds, assign to the user-configured dial type. The range is from 12 to 96. The value entered is rounded to the closest multiple of 1.5 ms.

cnfchec

Configures the echo canceller channel parameters associated with the specified voice channel. The echo canceller is the Integrated Echo Canceller (IEC) on the front card. CAS and data channels are not configured.

Full Name

Configure channel echo canceller

Syntax

cnfchec <chan> <AC> <erl> <td> <convergence> <nlp> [p]

Related Commands

dspchec

Attributes

Privilege

1

Jobs

No

Log

No

Node

IPX, IGX 8400 series

Lock

Yes

Example 1

cnfchec 7.1 e h e e e

Description

Enable and configure the CDP or CVM or card Echo Canceller in channel 7.1 with high echo loss tone disabled, convergence enabled, and non-linear processing enabled

System Response
pubsipx1 TN SuperUser IPX 16 8.4 July 27 1996 06:06 PDT Echo Echo Return Tone Conver- Non-Linear Voice Channels Cancel Loss (.1 dBs) Disabler gence Processing Tmplt 7.1 Enabled High 60 Enabled Enabled Enabled USA 7.2-31 Disabled High 60 Enabled Enabled Enabled USA Last Command: cnfchec 7.1 e h e e e Next Command:
Table 7-8: cnfchec—Parameters
Parameter Description

channel

Specifies the channel or range of channels.

echo canceller

Enable or disable the echo canceller. An "e" enables. A "d" disables.

echo return loss

Sets the echo return loss as high/low). An "h" specifies high. An "l" specifies low.

tone disabler

Enables or disables the tone disabler. An "e" enables. A "d" disables.

convergence

Enables or disables convergence. An "e" enables. A "d" disables. Except for test purposes, the normal state for convergence is enabled.

non-linear processing

Enables or disables non-linear processing. An "e" enables. A "d" disables.

cnfchgn

Configures the amount of gain inserted by the IPX or IGX 8400 series node for a given circuit line channel or range of channels. Gain can be configured between +6 dB and -8 dB. The input gain is inserted at the receive side of a CDP or CVM and is therefore applied before the signal is packetized by the card. The output gain is inserted at the transmit side of a CDP or CVM and is applied after the signal has been depacketized by the card. Gain is ignored for channels used in data connections.

Full Name

Configure gain insertion for channels

Syntax

cnfchgn <channel(s)> <input_gain> [<output_gain>]

Related Commands

dspchcnf

Attributes

Privilege

1-2

Jobs

Yes

Log

Yes

Node

IPX, IGX 8400 series

Lock

Yes

Example 1

cnfchgn 14.1 -4 2

Description

Configure input gain of -4 db and an output gain of +2 dB for channel 1 of circuit line 1.

System Response
alpha TRM YourID:1 IPX 16 8.4 Mar. 16 1996 09:52 PST % Adaptive Gain (dB) Dial OnHk Cond Channels Util Voice In Out Type Interface Type A B C D Crit. 14.1 40 Enabled -4 - User Unconfig ? ? - - a 14.2-24 40 Enabled 0 - Inband Unconfig ? ? - - a Last Command: cnfchgn 14.1 -4 2 Next Command:
Table 7-9: cnfchgn—Parameters
Parameter Description

channel

Specifies the channel or range of channels in which to configure gain.

gain

Specifies the gain, in decibels, to assign to the channel. The range is -8 dB to +6 dB.

cnfcond

Creates a conditioning template that specifies the bit patterns to be transmitted for each of the T1 and E1 timeslots and their A, B, C, and D signalling bits while the channel is in the failed state. Its purpose is to prevent the signalling bits from returning to the idle (on-hook) bit pattern during a channel failure and to force a known bit pattern (usually busy). If a connection fails and the template has been specified as the conditioning template for the failed connection, the data parameter in the template is transmitted in the channels timeslot, and the A, B, C, and D bits are processed according to the specified parameters.

A two-character sequence in the id parameter field identifies the template. The `Data Pattern' field displays the pattern transmitted in the channels timeslot. The `Signalling Pattern' field displays the pattern transmitted in the channel's A, B, C, and D signalling bit positions. Each of the A, B, C, and D signalling bits are specified independently and may be held high or low or toggled to the on-hook condition for a short time then off-hook (the name of this latter action is a wink). You can control the timing of the bit-toggling by specifying the duration of winks in increments of 50 msec.

A typical failure response is for the node to:

    1. Transmit idle characters in the channel's timeslot

    2. Signal off-hook for a period of 2 seconds

    3. Return permanently to the on-hook condition.

Full Name

Configure conditioning template

Syntax

cnfcond <id> <data> <A bit> <B bit> <C bit> <D bit>

Related Commands

cnfvchtp, dspchcnf, dspcond

Attributes

Privilege

1-2

Jobs

Yes

Log

Yes

Node

IPX, IGX 8400 series

Lock

Yes

Example 1

cnfcond lm 01010100 0(40)/1 1 1 1

Description

Configure the conditioning template.

System Response
alpha TRM YourID:1 IPX 16 8.4 Mar. 16 1996 09:59 PST Conditioning criterion lm: Data Pattern 01010100 - E1/T1 Signalling Pattern A 0(40)/1 B 1 C 1 D 1 Last Command: cnfcond lm 01010100 0(40)/1 1 1 1 Next Command:
Table 7-10: cnfcond—Parameters
Parameter Description

id

Specifies the identifier of conditioning template. The identifier may be any two character combination of lowercase letters (a-z) and numeric digits (0-9).

data

Specifies an eight-bit binary string to use instead of the voice in the event the channel fails.

A bit

B bit

C bit

D bit

Specifies the signalling sequence to be transmitted for these bits in the event of channel failure. Each of these four parameters may be set independently. Each element in the sequence is expressed as a 1 or 0 (to indicate the logic state of the line) followed by a number in parenthesis to indicate the duration that state is to be held on the channel. The duration number is expressed in 50 msec intervals.

For example, if <B> is set to 1(40); upon a channel failure, the B bit is held to the 1 state for a period of 2 seconds (40 x 50 msec = 2 seconds). If the duration value is omitted, the state is held permanently. So <C> set to 0 would cause the C bit to be held permanently to 0 during a failed channel condition.

A sequence of states can be specified by entering several states separated by slash symbols. A maximum of 5 states in sequence can be specified. For example, <A> set to 1(40)/0(20)/1 would cause, upon a failure of the c

cnfcondsc

Assigns a user-specified, reference description to a connection. The connection descriptor is independently configurable at each end of a connection. To remove a descriptor, enter this command and specify a null descriptor. A descriptor cannot be deleted in a job, just reconfigured. The dspcon and dspcons +d commands display any existing connection descriptors.

Full Name

Configure connection description

Syntax

cnfcondsc <channel> <descriptor>

Related Commands

dspcon, dspcons

Attributes

Privilege

1-2

Jobs

Yes

Log

Yes

Node

IPX, IGX 8400 series, BPX 8620

Lock

Yes

Example 1

cnfcondsc 5.1 gracie's_phone

Description

Assign the descriptive name "gracie's_phone" to channel 5.1. To assign this descriptor at the other end of the connection, vt to the other end of the connection, enter cnfcondsc, and specify the name "gracie's_phone."

System Response
alpha TRM YourID:1 IPX 16 8.4 Mar. 15 1996 15:40 PST Conn: 5.1 beta 25.1 256 7/8 Desc: gracie's_FAX Owner: REMOTE Restriction: NONE COS: 0 Status: OK Compression: NONE Path: alpha 10-- 7beta Pref: Not Configured alpha 5.1 beta 25.1 SDP: OK SDP: OK SDI: OK SDI: OK Clock: OK Clock: OK Last Command: cnfcondsc 5.1 gracie's_phone Next Command:
Table 7-11: cnfcondsc—Parameters
Parameter Description

channel

Specifies the local voice, data, frame relay, or ATM channel to describe.

descriptor

Specifies a string of up to 20 characters. The descriptor cannot begin with a number, and no spaces are allowed.

cnfrcvsig

Configures the receive signalling bits for a CDP or CVM voice channel. Channel signalling bit options are T (transparent), 0, 1, or I (invert). If signalling is set to "not used" (-) by cnfchtp, the following condition is maintained: A=1, B=1, C=0, D=1.

Full Name

Configure receive signalling

Syntax

cnfrcvsig <channel(s)> <[A/]Conv> <[B/]Conv> <[C/]Conv> <[D/]Conv>

Related Commands

cnfxmtsig, dspsigqual

Attributes

Privilege

1-2

Jobs

Yes

Log

Yes

Node

IPX, IGX 8400 series

Lock

Yes

Example 1

cnfrcvsig 8.1 A/T B/0 C/I D/I

Description

Configure channel 8.1 signalling to transparent for the A bit, inhibited for the B bit, inverted for the C and D bits.

System Response
beta TRM YourID:1 IPX 32 8.4 Mar. 23 1996 11:36 MST Signalling Qualifiers From 8.1 TXAbit TXBbit TXCbit TXDbit RXAbit RXBbit RXCbit RXDbit 8.1 T T T T T 0 I I 8.2-31 T T T T T T T T Last Command: cnfrcvsig 8.1 A/T B/0 C/I D/I Next Command:
Table 7-12: cnfrcvsig—Parameters
Parameter Description

channel

Specifies the channel or range of channels.
Table 7-13: cnfrcvsig—Optional Parameters
Parameter Description

A/

Specifies the conversion applied to the A bit. <Conv> can be one of:

1: bit is asserted.
0: bit is inhibited.
T: bit is passed transparently.
I: bit is inverted.

B/

Specifies the conversion applied to the B bit.

C/

Specifies the conversion applied to the C bit.

D/

Specifies the conversion applies to the D bit.

cnfvchtp

Configures an interface signalling type for a voice channel. Most standard signalling types are maintained by the node, but a custom template may be built by the user. Entering the cnfvchtp command without a specific interface number, the system presents you with a list of valid interface types and their associated onhook and conditioning information.

To assign an interface type (and its associated onhook and conditioning information) to the channel or set of channels, enter the number of the desired interface type. As mentioned previously, type "1" requires user configuration. Interface type is ignored for "d" type connections.

Full Name

Configure interface type for voice channels

Syntax

cnfvchtp <channel(s)> <type> [<A> <B> <C> <D> <cond_code>]

Related Commands

cnfchgn, cnfchdl, dspchcnf, dspconst

Attributes

Privilege

1-2

Jobs

Yes

Log

Yes

Node

IPX, IGX 8400 series

Lock

Yes

Example 1

cnfvchtp 14.1 1

Description

Configure the interface type for channel 14.1 to user configured

System Response
alpha TRM YourID:1 IPX 16 8.4 Mar. 16 1996 1:06 PST % Adaptive Gain (dB) Dial OnHk Cond Channels Util Voice In Out Type Interface Type A B C D Crit. 14.1 40 Enabled -4 - User Unconfig ? ? - - a 14.2-24 40 Enabled 0 - Inband Unconfig ? ? - - a Last Command: cnfvchtp 14.1 1 Next Command:
Example 2

cnfvchtp 15.5-8 1 X X - - b

Description

Configure a user configurable interface type for channel 15.1 to 15.8. The channel configuration screen shows that channels 5-8 of circuit line 15 now has a user-configured interface type with an A-bit on-hook value of "X", a B-bit on-hook value of "X", an C-bit on-hook value of not used, D-bit on-hook value of not used, and conditioning template b.


Table 7-14: cnfvchtp—Parameters
Parameter Description

channel

Specifies the channel or range of channels.

interface type

Specifies the number of the interface type to assign to the channel or range of channels. These types are listed below. The Onhook column has A bits on the left and B bits on the right. The conditioning column has different types of conditioning specified. If you designate interface type number 1 to indicate a user-configured interface type, the system prompts for: onhook A, onhook B, onhook C (if applicable), onhook D (if applicable), conditioning A, conditioning B, conditioning C (if applicable), conditioning D (if applicable), and conditioning template information.

When the IPX or IGX 8400 series receives A, B, C, and D bits corresponding to the onhook values, that channel is known to be onhook. If the A, B, C, and D bits do not correspond to the onhook values, that channel is known be offhook

onhook A

A-bit value for the onhook state of a channel or set of channels.

onhook B

B-bit value for the on-hook state of a channel or set of channels.

onhook C

C-bit value for the on-hook state of a channel or set of channels.

onhook D

D-bit value for the on-hook state of a channel or set of channels. Possible values are:

1 high
0 low
X don't care
? don't know
- not used

conditioning template

One of many predefined or user-defined conditioning templates in the range of 00000000 to 11111111. (See dspcond and cnfcond commands). Each interface type, except for option 1, has a predetermined conditioning template associated with it. These represent the A, B, C, D bit values as well as the substitute PCM voice sample sent to the attached equipment in case the voice connection fails for any reason.

cnfxmtsig

Allows the node to pass A, B, C, and D channel signalling bits through unchanged, or to invert, or hold them at a given value for a CDP or CVM line. It affects signalling bits in the transmit direction (to the PBX or channel bank) in an E1 system. The command configures the transmit signalling. Channel signalling bit options are T (transparent), 0, 1, or I (invert). If signalling is set to "not used" (-) by cnfchtp, the following is maintained: A=1, B=1, C=0, D=1.

Full Name

Configure transmit signalling

Syntax

cnfxmtsig <channel(s)> <[A/]Conv> <[B/]Conv> <[C/]Conv> <[D/]Conv>

Related Commands

cnfrcvsig, dspsigqual

Attributes

Privilege

1-2

Jobs

Yes

Log

Yes

Node

IPX, IGX 8400 series

Lock

Yes

Example 1

cnfxmtsig 8.1 a/1 b/0 c/1 d/t

Description

Configure the transmit signalling for channel 8.1 to inverted for the A bit, inhibited for the B bit, asserted for the C bit and transparent for the D bit.

System Response
beta TRM YourID:1 IPX 32 8.4 Mar. 23 1996 11:38 MST Signalling Qualifiers From 8.1 TXAbit TXBbit TXCbit TXDbit RXAbit RXBbit RXCbit RXDbit 8.1 1 0 1 T T 0 I I 8.2-31 T T T T T T T T Last Command: cnfxmtsig 8.1 A/1 B/0 C/1 D/t Next Command:
Table 7-15: cnfxmtsig—Parameters
Parameter Description

channel

Specifies the channel or range of channels.
Table 7-16: cnfxmtsig—Optional Parameters

Parameter

Description

A/

Specifies the conversion applied to the A bit. <Conv> can be one of:

1: bit is asserted.
0: bit is inhibited.
T: bit is passed transparently.
I: bit is inverted.

B/

Specifies the conversion applied to the B bit.

C/

Specifies the conversion applied to the C bit.

D/

Specifies the conversion applies to the D bit.

delcon

Removes voice connections from a network. Connections can be deleted from the node at either end of the connection. Do not delete a connection when the node at the other end of the connection is unreachable. The unreachable node does not recognize the deletion. It is especially important not to delete a connection to an unreachable node then connect the deleted channel to another node.

Full Name

Delete connection

Syntax

delcon <channel(s)>

Related Commands

addcon, dspcon, dspcons

Attributes

Privilege

1-2

Jobs

Yes

Log

Yes

Node

IPX, IGX 8400 series

Lock

Yes

Example 1

delcon 14.1

Description

Delete connection 14.1. The proposed deletions are highlighted, a prompt requests confirmation of the deletion. Enter a "y" to delete the highlighted connections or an "n" not to delete. The example shows the screen after deletion of 14.1.

System Response
alpha TRM YourID:1 IPX 16 8.4 Mar. 16 1996 09:35 PST Local Remote Remote Route Channel NodeName Channel State Type Compression Code Avoid COS O 5.1 beta 25.1 Ok 256 7/8 0 L 9.1.100 gamma 8.1.200 Ok fr 0 L 9.2.400 beta 19.2.302 Ok fr 0 L Last Command: delcon 14.1 Next Command:
Table 7-17: delcon—Parameters
Parameter Description

channel(s)

Specifies a channel or range of channels to delete. The format for channel is: slot.channel

For a range of channels, separate the first and last channel with a dash (-).

dspchcnf

Displays configuration details for voice, data, or frame relay channels. Voice channels display: Utilization, Adaptive Voice, Gain, Dial Type, Interface Type, and OnHook and Conditioning specifications. Data channels display: Maximum EIA Update Rate, Percentage Utilization, DFM Pattern Length, and DFM Status. Frame relay channels display: Minimum Information Rate, VC Queue Buffer Size or Bc, Peak Information Rate or Be, Maximum Credits, ECN Queue Buffer Size, Quiescent Information Rate, ForeSight enabled or not, and Percentage Utilization.

If the channel specified is a voice channel, the display includes configuration details for all channels on the specified circuit line starting with the specified channel. If the channel is a data channel, the display includes configuration details for all channels on the specified data card (CDP or CVM, LDP, or SDP or HDM), starting with the specified channel. If the channel is a frame relay channel, the display includes configuration details for all channels on the specified frame relay port starting with the specified channel. If you specify a frame relay port only with no DLCI, the display includes configuration details for all channels on the frame relay port specified. The display will indicate either Cisco-specific parameters or standard frame relay parameters.

Full Name

Display channel configurations

Syntax

dspchcnf [channel]

Related Commands

cnfchadv, cnfchdfm, cnfchdl, cnfcheia, cnfchgn, cnfchtp, cnfchutl, cnffrcon

Attributes

Privilege

1-6

Jobs

No

Log

No

Node

IPX, IGX 8400 series

Lock

No

Example 1

dpchcnf 14.1

Description

Display the configuration values of circuit line 14.1.

System Response
alpha TRM YourID:1 IPX 16 8.4 Mar. 16 1996 10:06 PST % Adaptive Gain (dB) Dial OnHk Cond Channels Util Voice In Out Type Interface Type A B C D Crit. 14.1 40 Enabled -4 - User Unconfig ? ? - - a 14.2-24 40 Enabled 0 - Inband Unconfig ? ? - - a Last Command: dspchcnf 14.1 Next Command:
Table 7-18: dspchchf—Parameters
Parameter Description

start channel

Specifies the channel to begin the display. Format is as follows: slot.channel

dspchdlcnf

Displays dial-type configurations for all channels on a line. Table 7-19 lists the configurations.


Table 7-19: Dial-Type Configurations
Channel Type Dial Type Description

All

Dial Type

Inband, pulse, or user configured.

User-configured

signalling delay

The signalling delay, in milliseconds, assigned to the channel. The range is from 12 to 96.

minimum wink

The minimum wink assigned to a channel. The range is 3-765 ms. (This parameter does not apply to CDP or CVM channels.)

interdigit time

The interdigit times assigned to a channel. The range is 3-765 ms. (This parameter does not apply to CDP or CVM channels.)

playout delay

The signaling delay assigned to a channel. The range is 12-96 ms.
Full Name

Display dial type configurations for channels

Syntax

dspchdlcnf [start_channel]

Related Commands

cnfchdl

Attributes

Privilege

1-6

Jobs

No

Log

No

Node

IPX, IGX 8400 series

Lock

No

Example 1

dpchdlcnf 14.1

Description

Display the dial type configuration for all channels beginning with 14.1.

System Response
alpha TRM YourID:1 IPX 16 8.4 Mar. 16 1996 09:45 PST Channels Type Sig Delay Min Wink IntDigit Time Playout Delay 14.1-24 Inband 12 141 300 - Last Command: dspchdlcnf 14.1 Next Command:
Table 7-20: dspchdlcnf—Parameters

Parameter

Description

start channel

Specifies the channel with which to begin the display.

dspchec

Displays the Integrated Echo Canceller channel parameters associated with the specified voice channel(s). CAS and DATA channels are not displayed. The specified channels must be on a CDP or CVM. Table 7-21 lists the displayed parameters and possible values.


Table 7-21: Echo Canceller Parameters
Echo Cancel Enable/Disable

Echo Return Loss (.1 dBs)

High/low (loss is in units are 0.1 dBs)

Tone Disabler

Enabled/disabled

Convergence

Enabled/disabled

Non-Linear Processing

Enabled/disabled
Full Name

Display CDP or CVM voice echo canceller configuration

Syntax

dspchec <channel(s)>

Related Commands

cnfchec

Attributes

Privilege

1-6

Jobs

No

Log

No

Node

IPX, IGX 8400 series

Lock

No

Example 1

dpchec 7.1

Description

Display the echo canceller configuration for channel 7.1.

System Response
pubsipx1 TN SuperUser IPX 16 8.4 July 27 1996 06:10 PDT Echo Echo Return Tone Conver- Non-Linear Voice Channels Cancel Loss (.1 dBs) Disabler gence Processing Tmplt 7.1 Enabled High 60 Enabled Enabled Enabled USA 7.2-31 Disabled High 60 Enabled Enabled Enabled USA Last Command: dspchec 7.1 Next Command:
Table 7-22: dspchec—Parameters
Parameter Description

channel

Specifies the channel or channels to display.

dspcon

Displays connection information for a specified channel. The information displayed includes:

The status that may be displayed includes:

OK

Connection OK

FAILED

Connection failed

Full Name

Display connection

Syntax

dspcon <channel>

Related Commands

cnfchec

Attributes

Privilege

1-6

Jobs

Yes

Log

Yes

Node

IPX, IGX 8400 series

Lock

No

Example 1

dspcon 6.1

Description

Display connection information for 6.1.

System Response
sw196 VT SuperUser IGX 16 8.4 Nov. 19 1996 13:35 PDT Conn: 6.1 sw83 7.13 c16 Status:OK Owner: LOCAL Restriction: NONE COS: 2 Compression: ADPCM Path: sw196 14-- 6.1sw86 1.1-- 11sw83 Pref: sw196 14-- 6.1sw86 1.1-- 11sw83 sw196 Line 6: OK ONHK sw83 Line 7: OK Last Command: dspcon 6.1 Next Command:
Table 7-23: dspcon—Parameters
Parameter Description

channel

Specifies the channel for the display. The format for channel is slot.channel.dlci. The command displays connection information for one channel at a time.

dspcond

Displays the signalling bit patterns from the specified template. Refer to the description of the cnfcond command for the purpose of the conditioning template.

Full Name

Display conditioning criteria

Syntax

dspcond <identifier>

Related Commands

cnfchtp, cnfcond

Attributes

Privilege

1-6

Jobs

No

Log

No

Node

IPX, IGX 8400 series

Lock

No

Example 1

dspcond a

Description

Display the conditioning template identified as "a."

System Response
alpha TRM YourID:1 IPX 16 8.4 Mar. 16 1996 09:56 PST Conditioning criterion a: Data Pattern 01010100 - E1 01111111 - T1 Signalling Pattern A 0(40)/1 B 1 C 1 D 1 Last Command: dspcond a Next Command:
Table 7-24: dspcond—Parameters
Parameter Description

identifier

Specifies the identifier of the template.

dspcons

Displays a summary of the connections on an IPX or IGX 8400 series node. Table 7-25 lists the fields displayed in the dspcons screens.


Table 7-25: Summary Display of Connections
Fields Description

Local Channel

The connection's channel at this node.

Remote Node Name

The name of the node at the other end of the connection.

Remote Channel

The connection's channel at the remote node.

State

The state of the connection(s) as follows:

  • OK Routed

  • Down Downed

  • OK Downed Waiting for onhook to occur to allow courtesy down to take
    place for connection(s) that have been courtesy downed using the dncon command.

  • Failed Unrouted, but trying

Type

The type of connection (v = voice, d = data, fr = frame relay, atfr = ATM to frame relay interworking, atfst = ATM to frame relay interworking with ForeSight, -fail = failed connections; data rate in kbps for data)

Route Avoid

The type of lines to avoid when routing (satellite lines, terrestrial lines, lines with zero code suppression).

Compression

The type of compression applied to the connection (PCM, PCM and VAD, ADPCM, VAD and ADPCM for voice connections), (DFM for data connections).

COS

The Class Of Service.

Owner

The end of the connection in control of re-routing.

Descriptor

The connection descriptor string (if +d option specified).

Loopback

A connection with a local loopback is indicated by a right parenthesis symbol between the "Local Channel" and "Remote NodeName" columns. A frame relay connection with a port loopback is indicated by a right bracket symbol between the "Local Channel" and "Remote NodeName" columns. A connection with a remote loopback is indicated by a right parenthesis symbol before the channel number in the "Remote Channel" column.

Local/Remote A-bit

A-bit status on the local and remote nodes if -abit option selected. Note that -abit is incompatible with -v, -d, and +d.
Full Name

Display connections

Syntax

dspcons [-v | -d | -a | -atfr | -g | +d | -abit | fabit | -fail]

Related Commands

addcon, cnfchadv, chfchdfm, cnfcondsc

Attributes

Privilege

1-6

Jobs

No

Log

No

Node

IPX, IGX 8400 series

Lock

No

Example 1

dspcons

Description

Display a summary of all connections.

System Response
pubsipx1 TN SuperUser IPX 16 8.4 July 24 1996 23:04 PDT Local Remote Remote Channel NodeName Channel State Type Compress Code COS 5.1.100 pubsipx3 5.1.200 Ok fr 0 Last Command: dspcons Next Command:
Example 2

dspcons -abit

Description

Display connections and abit status.

System Response
sw53 VT SuperUser BPX 15 8.4 July 25 1996 11:52 GMT Local Remote Remote Local Remote Channel NodeName Channel State A-bit A-bit 4.1.2.1 sw53 4.3.2.1 Ok OK OK 4.1.2.2 sw53 4.3.2.2 Ok OK OK 4.1.2.3 sw53 4.3.2.3 Ok OK OK 4.1.2.4 sw53 4.3.2.4 Ok OK OK 4.1.2.5 sw53 4.3.2.5 Ok OK OK 4.1.2.6 sw53 4.3.2.6 Ok OK OK 4.1.2.7 sw53 4.3.2.7 Ok OK OK 4.1.2.8 sw53 4.3.2.8 Ok OK OK 4.1.2.9 sw53 4.3.2.9 Ok OK OK 4.1.2.10 sw53 4.3.2.10 Ok OK OK 4.1.2.11 sw53 4.3.2.11 Ok OK OK 4.1.2.12 sw53 4.3.2.12 Ok OK OK 4.1.2.13 sw53 4.3.2.13 Ok OK OK This Command: dspcons -abit Continue?
Table 7-26: dspcons—Optional Parameters
Parameter Description

start channel

Specifies the channel to begin the display. The start channel is specified as follows:
slot.channel | slot.port.dlci | slot.vpi.vci

node name

Specifies that only connections to this remote node from the local note be displayed. If no "nodename" is designated, connections from the local node to all other nodes are displayed.

connection type

Specifies that only connections of this type be displayed. If no "connection type" is designated, all connections appear. When you enter the connection type on the command line, precede it with a hyphen (-). Valid connection types to display are:

-v Displays only voice connections.

-d Display only data connections.

-f Displays frame relay connections.

-abit Shows A-bit (nni) status.

-fabit Shows connections with failed A-bit (nni) status.

+d

Causes the display to show the user-configurable descriptor for the connection instead of the compression and ownership fields.

dspconst

Displays the status of the line(s) and continues to display the status until you press the DEL key. While the display is on the screen, the status is automatically updated. The update frequency is one second for each circuit line being displayed. (For example, if only one line is displayed, the update frequency is once per second, if three circuit lines are displayed, the update frequency is once per three seconds). Table 7-27 lists the connection states displayed by dspconst.


Table 7-27: Connection States
Symbol Description

+

offhook

-

onhook

m

slow modem

M

fast modem

blank

channel not connected
Full Name

Display connection state for line connections

Syntax

dspconst [circuit line]

Related Commands

cnfchtp

Attributes

Privilege

1-6

Jobs

No

Log

No

Node

IPX, IGX 8400 series

Lock

No

Example 1

dspconst

Description

Display the condition state for the voice channels on the node.

System Response
alpha TRM YourID:1 IPX 16 8.4 Mar. 16 1996 09:55 PST Connection status display + offhook, - onhook, m slow modem, M fast modem 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2 2 3 3 CLN 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 14 + This Command: dspconst Hit DEL key to quit:
Table 7-28: dspconst—Optional Parameters
Parameter Description

circuit line

Specifies the line number for displaying channel states. If you do not specify a line, all upped lines (up to a maximum of eight) appear.

dspsigqual

Displays the configuration for the A, B, C, and D bit signalling qualifiers for all channels. The only parameter is the starting channel. You set the values for these signalling bits with the cnfrcvsig and cnfxmtsig commands. Note that these signaling bit states are different from the states during circuit alarm (signalling conditioning).

During normal operation of the voice circuit, the A, B, C, and D signalling bits may be held at a fixed value (0 or 1), inverted (I), or passed through transparently (T). For the direction of the signals, the transmit direction is towards the PBX or channel bank. Receive is from the external equipment.

Full Name

Display signalling qualifiers

Syntax

dspsigqual <start channel>

Related Commands

cnfxmtsig, cnfrcvsig

Attributes

Privilege

1-6

Jobs

No

Log

No

Node

IPX, IGX 8400 series

Lock

No

Example 1

dspsigqual 8.1

Description

Display the channel signalling bit qualifiers for channel 8.1.

System Response
beta TRM YourID:1 IPX 32 8.4 Mar. 23 1996 11:39 MST Signalling Qualifiers From 8.1 TXAbit TXBbit TXCbit TXDbit RXAbit RXBbit RXCbit RXDbit 8.1 1 0 1 T T 0 I I 8.2-31 T T T T T T T T Last Command: dspsigqual 8.1 Next Command:
Table 7-29: dspsigqual—Parameters
Parameter Description

start channel

Specifies the number of the starting channel in the format slot.port

dspsvcst

Displays the voice SVC statistics.

Full Name

Display voice SVC statistics

Syntax

dspsvcst

Related Commands

Attributes

Privilege

1-6

Jobs

No

Log

No

Node

IPX, IGX 8400 series

Lock

No

Example 1

dspsvcst

Description

Display the voice SVC statistics for the current node.

System Response
sw91 TN SuperUser IPX 8 8.4 May 29 1996 14:11 GMT Number of Active SVC : 0 Number of SVC Requests : 0 Number of Failed Requests : 0 Last Reason for request failure : 0 Number of Completed SVC Routes : 0 Number of Failed SVC Routes : 0 Number of Deleted SVC(s) : 0 Number of Failed SVC : 0 Max Secs To Perform SVC Route : 0.000 Avg Secs To Perform SVC Route : 0.000 Last Command: dspsvcst Next Command:

prtchcnf

Prints the configuration details for voice channels or data channels. This command uses the same syntax, and prints the same information as is displayed using the dspchcnf command. See the dspchcnf command for syntax and output information.

Full Name

Print channel configurations

Syntax

prtchcnf [start_channel]

Related Commands

dspchcnf

Attributes

Privilege

1-6

Jobs

Yes

Log

No

Node

IPX, IGX 8400 series

Lock

Yes

Example 1

prtchcnf 14.1

Description

Print the configuration values of circuit line 14.1.

System Response

None available because this command produces hardcopy.


Table 7-30: prtchcnf—Parameters
Parameter Description

start channel

Specifies the starting channel for the print output. The format is slot.channel.

prtchdlcnf

Prints the dial type configurations for channels on a circuit line.

Full Name

Print dial type configuration for channels

Syntax

prtchdlcnf [start_channel]

Related Commands

cnfchdl, dspchcnf

Attributes

Privilege

1-6

Jobs

Yes

Log

No

Node

IPX, IGX 8400 series

Lock

Yes

Example 1

prtchcnf 14.1

Description

Print the dial type configuration for all channels beginning with 14.1.

System Response

None available as this command produces hardcopy.


Table 7-31: prtchdlcnf—Parameters
Parameter Description

start channel

Specifies the starting channel for the print output. The format is slot.channel.

prtcons

Prints a summary of connections terminated at the IPX or IGX 8400 series node.

Full Name

Print connections

Syntax

prtcons [start_channel] [nodename] [type] [+d]

Related Commands

dspcons

Attributes

Privilege

1-6

Jobs

Yes

Log

No

Node

IPX, IGX 8400 series

Lock

Yes

Example 1

prtcons

Description

Print a summary of all connections.

System Response

None available as this command produces hardcopy.


Table 7-32: prtcons—Optional Parameters
Parameter Description

start channel

Specifies the first channel in the printout. Specify the starting channel in the format slot.channel.

node name

Specifies that only connections to this remote node from the local note be displayed. If no "nodename" is designated, connections from the local node to all other nodes are displayed.

connection type

Specifies that only connections of this type be displayed. If no "connection type" is designated, all connections display. When you enter the connection type on the command line, it must be preceded with a hyphen (-). Valid connection types to display are:

-v Displays only voice connections.
-d Display only data connections.
-f Displays frame relay connections.
-nni Displays frame relay network to network connections for failed
connections only.

+d

Specifies that the display should show the connection descriptor string in place of the usual compression and ownership fields.


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Posted: Thu Jan 18 13:04:14 PST 2001
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