Specifications

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Cisco IOS Survivable Remote Site Telephony Version 3.4 System Administrator Guide
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.
Contents
• Information About Setting Up Cisco IP Phones, page 45
• How to Set Up Cisco IP Phones, page 45
• Where to Go Next, page 53
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:
• Configuring IP Phone Clock, Date, and Time Formats, page 46 (Optional)
• Configuring IP Phone Language Display, page 47 (Optional)
• Configuring Customized System Messages for Cisco IP Phones, page 48 (Optional)