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Table Of Contents
Information About Setting Up Cisco IP Phones
Configuring IP Phone Clock, Date, and Time Formats
Configuring IP Phone Language Display
Configuring Customized System Messages for Cisco IP Phones
Configuring a Secondary Dial Tone
Setting Up Cisco IP Phones
This chapter describes how to set up the displays and features that callers will see and use on Cisco IP phones during Cisco CallManager fallback.
Note
The Cisco IOS Voice Configuration Library includes a standard library preface, glossary, and feature and troubleshooting documents and is located at http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123cgcr/vcl.htm.
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Information About Setting Up Cisco IP Phones
Cisco IP phone configuration is limited for Cisco Survivable Remote Site Telephony (SRST) because IP phones retain nearly all Cisco CallManager settings during Cisco CallManager fallback. You can configure the date format, time format, language, and system messages that appear on Cisco IP phones during Cisco CallManager fallback. All four of these settings have defaults, and the available language options depend on the IP phones and Cisco CallManager version in use. Also available for configuration is a secondary dial tone, which can be generated when a phone user dials a predefined PSTN access prefix and can be terminated when additional digits are dialed. Dual-line phone configuration is required for dual-line phone operation during Cisco CallManager fallback.
How to Set Up Cisco IP Phones
This section contains the following tasks:
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Configuring IP Phone Clock, Date, and Time Formats
The Cisco 7970G and Cisco 7971G-GE IP phones obtain the correct timezone from Cisco CallManager. They also receive the Coordinated Universal Time (UTC) time from the SRST router during SRST registration. When in SRST mode, the phones take the timezone and the UTC time, and apply a timezone offset to produce the correct time display.
Cisco 7960 IP phones and other similar SCCP phones such as the Cisco 7940, get their display clock information from the local time of the SRST router during SRST registration. If the SRST router is configured to use the Network Time Protocol (NTP) to automatically sync the SRST router time from an NTP time server, only UTC time is delivered to the router. This is because the NTP server could be physically located anywhere in the world, in any timezone. As it is important to display the correct local time, use the clock time-zone command to adjust or offset the SRST router time.
The date and time formats that appear on the displays of all Cisco IP phones in Cisco CallManager fallback mode are selected using the date-format and time-format commands as configured below:
SUMMARY STEPS
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DETAILED STEPS
Example
The following example sets the time zone to Pacific Standard Time (PST), which is 8 hours behind UTC and sets the time display format to a 24 hour clock:
Router(config)# clock timezone PST -8Rounter(config)# call-manager-fallbackRounter(config-cm-fallback)# time-format 24Configuring IP Phone Language Display
During Cisco CallManager fallback, the language displays shown on Cisco IP phones default to the ISO-3166 country code of US (United States). The Cisco IP Phone 7940 and Cisco IP Phone 7960 can be configured for different languages (character sets and spelling conventions) using the user-locale command.
Note
SUMMARY STEPS
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DETAILED STEPS
Examples
The following example offers a configuration for the Portugal user locale.
call-manager-fallbackuser-locale PTConfiguring Customized System Messages for Cisco IP Phones
The system message command is used to customize the system message displayed on all Cisco IP
Phone 7910, Cisco IP Phone 7940G, and Cisco IP Phone 7960G units during Cisco CallManager fallback.One of two keywords, primary and secondary, must be included in the command. The primary keyword is for IP phones that can support static text messages during fallback, such as the Cisco IP Phone 7940 and Cisco IP Phone 7960 units. The default display message for primary IP phones in fallback mode is "CM Fallback Service Operating."
The secondary keyword is for Cisco IP phones that do not support static text messages and have a limited display space, such as the Cisco IP Phone 7910. Secondary IP phones flash messages during fallback. The default display message for secondary IP phones in fallback mode is "CM Fallback Service."
Changes to the display message will occur immediately after configuration or at the end of each call.
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SUMMARY STEPS
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DETAILED STEPS
Examples
The following example sets "SRST V3.0" as the system display message for all Cisco IP phones on a router:
call-manager-fallbacksystem message primary SRST V3.0system message secondary SRST V3.0exitConfiguring a Secondary Dial Tone
A secondary dial tone can be generated when a phone user dials a predefined PSTN access prefix and can be terminated when additional digits are dialed. An example is when a secondary dial tone is heard after the number 9 is dialed to reach an outside line.
SUMMARY STEPS
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DETAILED STEPS
Examples
The following example sets the number 8 to trigger a secondary dial tone:
call-manager-fallbacksecondary-dialtone 8Configuring Dual-Line Phones
Dual-line phone configuration is required for dual-line phone operation during Cisco CallManager fallback. Consultative transfer is also required (see the "Enabling Consultative Call Transfer and Forward Using H.450.2 and H.450.3 with Cisco SRST V3.0" section on page 74).
Dual-line IP phones are supported during Cisco CallManager fallback using the max-dn command. Dual-line IP phones have one voice port with two channels to handle two independent calls. This capability enables call waiting, call transfer, and conference functions on a phone-line button.
In dual-line mode, each IP phone and its associated line button can support one or two calls. Selection of one of two calls on the same line is made using the blue Navigation button located below the phone display. When one of the dual-line channels is used on a specific phone, other phones that share the ephone-dn will be unable to use the secondary channel. The secondary channel will be reserved for use with the primary dual-line channel.
It is recommended that hunting be disabled to the second channel. For more information, see the "Configuring Dial-Peer and Channel Hunting" section on page 70.
SUMMARY STEPS
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DETAILED STEPS
Step 1
call-manager-fallback
Example:Router(config)# call-manager-fallback
Enters call-manager-fallback configuration mode.
Step 2
max-dn max-directory-numbers [dual-line] [preference preference-order]
Example:Router(config-cm-fallback)# max-dn 15 dual-line preference 1
Sets the maximum number of directory numbers (DNs) or virtual voice ports that can be supported by the router and activates the dual-line mode.
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The alias command also has a preference keyword that sets alias command preference values. Setting the alias command preference keyword allows the default preference set with the max-dn command to be overriden. See Configuring Call Rerouting, page 58 for more information on using the max-dn command with the alias command.
Step 3
exit
Example:Router(config-cm-fallback)# exit
Exits call-manager-fallback configuration mode.
Examples
The following example sets the maximum number of DNs or virtual voice ports that can be supported by a router to 10 and activates the dual-line mode for all IP phones in Cisco CallManager fallback mode.
call-manager-fallbackmax-dn 10 dual-lineexitWhere to Go Next
The next step is setting up call handling. For instructions, see the " Setting Up Call Handling" chapter.
Posted: Mon Nov 27 10:59:47 PST 2006
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