Specifications

Overview of Cisco Unified SRST
Restrictions for Configuring Cisco Unified SRST
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Cisco Unified Survivable Remote Site Telephony Version 4.0 System Administrator Guide
If You Have Cisco CallManager Prior to V3.3
If you have firmware versions that enable Cisco Unified SRST by default, no additional configuration is
required on Cisco CallManager to support Cisco Unified SRST. If your firmware versions disable
Cisco Unified SRST by default, you must enable Cisco Unified SRST for each phone configuration.
Step 1 Go to the Cisco CallManager Phone Configuration page.
a. From any page in Cisco CallManager, click Device and Phone.
b. In the Find and List Phones page, click Find.
c. After a list of phones appears, click on the desired device name.
d. The Phone Configuration appears.
Step 2 In the Phone Configuration page, go to the Product Specific Configuration section at the end of the page,
choose Enabled from the Cisco Unified SRST field’s menu, and click Update.
Step 3 Go to the Phone Configuration page for the next phone and choose Enabled from the Cisco Unified
SRST field’s menu by repeating Step 1 and Step 2.
Restrictions for Configuring Cisco Unified SRST
Table 4 provides a history of restrictions from Cisco SRST Version 1.0 to the present version of
Cisco Unified SRST.