Configuring a Media Gateway for Cisco EGW Integration

Table Of Contents

Configuring a Media Gateway to Communicate with the Cisco EGW 2200

Configuring a DPNSS Media Gateway to Communicate with the Cisco EGW 2200

Configuring a QSIG or PRI Media Gateway to Communicate with Cisco EGW

Configuring a Media Gateway to Communicate with the Cisco EGW 2200

Updated 6/2/05
Current through Release 1.1(2)

This topic describes how to configure the following types of media gateways and provides an example configuration for each one:

•A Digital Private Network Signaling System (DPNSS) media gateway used in an IP PBX Cisco CallManager application or Cisco Unity messaging application

•A QSIG or PRI media gateway used in a Cisco Unity messaging application or in a PSTN Interconnect application

Configuring a DPNSS Media Gateway to Communicate with the Cisco EGW 2200

Before You Begin

The media gateway should be installed and configured with a basic configuration.

Perform the following steps on the media gateway to configure communication with the Cisco EGW 2200:

Step 1 Configure and verify MGCP:

•Refer to "Configuring Media Gateway Control Protocol and Related Protocols" at http://www.cisco.com/en/US/products/sw/iosswrel/ps1835/products_configuration_guide_chapter09186a0080080abd.html

Step 2 Configure and verify DPNSS backhaul (Digital Access Signaling System (DASS) User Adaptation (DUA) over Stream Control Transmission Protocol (SCTP)). Refer to "Digital Private Network Signaling System Backhaul" at http://www.cisco.com/en/US/products/sw/iosswrel/ps5012/products_feature_guide09186a0080182322.html.

An example of the resulting configuration is shown in Example 1.

Note This document describes implementing DPNSS backhaul to a Cisco PGW 2200, and is associated with Cisco IOS software Release 12.2 special and early deployments. The procedure is equally applicable to the Cisco EGW and later Cisco IOS software releases.

DPNSS Media Gateway Configuration Examples

Example 1 DPNSS Media Gateway Configuration Example

router# show configuration
Using 2110 out of 155640 bytes
!
! Last configuration change at 12:56:48 est Thu Mar 25 2004
! NVRAM config last updated at 12:56:48 est Thu Mar 25 2004
!
version 12.2
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname va-3745-8
!
boot system flash c3745-js-mz.122-15.ZJ.bin
logging queue-limit 100
enable password cisco
!
clock timezone est -5
voice-card 1
dspfarm
!
voice-card 2
dspfarm
!
ip subnet-zero
!
no ip domain lookup
ip host egw-16 10.82.81.47 10.82.80.27 10.82.81.46 10.82.80.26 ! mpls ldp logging neighbor-changes isdn switch-type primary-dpnss ! ! ! ! ! ! ! ! ! no voice hpi capture buffer no voice hpi capture destination
!
!
mta receive maximum-recipients 0
iua
AS 3745-8 10.82.81.27 9900
ASP egw-15 AS 3745-8 10.82.81.46 10.82.80.26 9900
ASP egw-16 AS 3745-8 10.82.81.47 10.82.80.27 9900
!
controller E1 1/0
framing NO-CRC4
pri-group timeslots 1-31 service mgcp
!
controller E1 1/1
framing NO-CRC4
pri-group timeslots 1-31 service mgcp
!
controller E1 2/0
!
controller E1 2/1
!
!
!
interface FastEthernet0/0
ip address 10.82.81.27 255.255.255.0
duplex auto
speed auto
!
interface FastEthernet0/1
ip address 10.82.80.14 255.255.255.0
duplex auto
speed auto
!
interface Serial1/0:15
no ip address
no logging event link-status
isdn switch-type primary-dpnss
isdn incoming-voice voice
isdn bind-l3 iua-backhaul 3745-8
isdn dpnss pbxA
no cdp enable
!
interface Serial1/1:15
no ip address
no logging event link-status
isdn switch-type primary-dpnss
isdn incoming-voice voice
isdn bind-l3 iua-backhaul 3745-8
isdn dpnss pbxA
no cdp enable
!
ip http server
ip classless
ip route 0.0.0.0 0.0.0.0 10.82.81.1
!
call rsvp-sync
!
voice-port 1/0:15
!
voice-port 1/1:15
!
mgcp
mgcp call-agent egw-16 service-type mgcp version 1.0
mgcp rtp unreachable timeout 10000
!
mgcp profile default
!
dial-peer cor custom
!
line con 0
exec-timeout 0 0
logging synchronous
line aux 0
line vty 0 4
exec-timeout 0 0
password cisco
logging synchronous
login
!
ntp clock-period 17175919
ntp server 10.82.71.210
End

Configuring a QSIG or PRI Media Gateway to Communicate with Cisco EGW

You configure the media gateway the same way for both QSIG or PRI interworking.

Before You Begin

The media gateway should have been installed and configured with a basic configuration.

Perform the following steps on the media gateway.

Step 1 Configure and verify MGCP:

•Refer to "Configuring Media Gateway Control Protocol and Related Protocols" at http://www.cisco.com/en/US/products/sw/iosswrel/ps1835/products_configuration_guide_chapter09186a0080080abd.html

Step 2 Configure and verify QSIG (PRI/Q.931 Signaling) backhaul Cisco Reliable User Datagram Protocol (RUDP). Refer to "QSIG Backhaul (RUDP- based) for Cisco IOS Gateways" at http://cisco.com/en/US/products/sw/iosswrel/ps1839/products_feature_guide09186a00800b5dab.html.

If you configure fault tolerance on the Cisco EGW 2200, configure the session set (backhaul session-manager) as fault tolerant (ft) on the gateway. If the Cisco EGW is standalone, configure the session set as no fault tolerance (nft). on the gateway.

An example of the resulting configuration, with fault tolerance, is shown in Example 2.

Note This document is associated with Cisco IOS software Release 12.2T. The procedure is equally applicable to later Cisco IOS software releases.

QSIG or PSTN (PRI) Media Gateway Configuration Example

Example 2 QSIG or PSTN (PRI) Media Gateway Configuration Example

router# show configuration
Using 2194 out of 520184 bytes
!
version 12.3
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname va-5350-28
!
boot-start-marker
boot system flash c5350-js-mz.123-5a.bin
no boot startup-test
boot-end-marker
!
enable password cisco
!
resource-pool disable
tdm clock priority 1 3/0
spe default-firmware spe-firmware-1
no aaa new-model
ip subnet-zero
no ip domain lookup
ip host egw15-16 10.82.81.46 10.82.80.26 10.82.81.47 10.82.80.27 ! ip cef

!
backhaul-session-manager
set set1 client ft
group egw-16 set set1
group egw-15 set set1
session group egw-15 10.82.80.26 7007 10.82.81.4 7007 1
session group egw-15 10.82.81.46 7007 10.82.81.4 7007 0
session group egw-16 10.82.80.27 7007 10.82.81.4 7007 1
session group egw-16 10.82.81.47 7007 10.82.81.4 7007 0
isdn switch-type primary-qsig
!
controller E1 3/0
framing NO-CRC4
pri-group timeslots 1-31 service mgcp
!
controller E1 3/1
framing NO-CRC4
pri-group timeslots 1-31 service mgcp
!
interface FastEthernet0/0
ip address 10.82.81.4 255.255.255.0
duplex auto
speed auto
!
interface FastEthernet0/1
ip address 10.82.80.3 255.255.255.0
duplex auto
speed auto
!
interface Serial0/0
no ip address
shutdown
clockrate 2000000
!
interface Serial0/1
no ip address
shutdown
clockrate 2000000
!
interface Serial3/0:15
no ip address
isdn switch-type primary-qsig
isdn protocol-emulate network
isdn bind-l3 backhaul set1
no cdp enable
!
interface Serial3/1:15
no ip address
isdn switch-type primary-qsig
isdn protocol-emulate network
isdn bind-l3 backhaul set1
no cdp enable
!
interface Group-Async0
no ip address
no group-range
!
interface Group-Async1
no ip address
group-range 1/00 1/59
!
ip classless
ip route 0.0.0.0 0.0.0.0 10.82.81.1
no ip http server
!
voice-port 3/0:15
compand-type a-law
!
voice-port 3/1:15
compand-type a-law
!
mgcp
mgcp call-agent egw15-16 service-type mgcp version 1.0
!
mgcp profile default
!
line con 0
exec-timeout 0 0
logging synchronous
line aux 0
line vty 0 4
exec-timeout 0 0
password cisco
logging synchronous
login
line 1/00 1/59
no flush-at-activation
modem InOut
!
scheduler allocate 10000 400
!