Can IP Phone register with PhoneProxy while supporting SRST

Unanswered Question
Jun 13th, 2008

Design Diagram:

IP Phones are currently registered across the internet to Cisco PhoneProxy -There is IPSec Site-to-Site VPN in place for Data Traffic "only"


I want to setup SRST on the local router incase connectivity is lost btwn the ip phone(s) and the phoneproxy and/or the phoneproxy and call manager.

How will the ip phone(s) treat SRST if any of the above scenarios are introduced?

Since the PhoneProxy rewrite the XML files on the phone - Is it possible to have SRST in this design scenario?

I have this problem too.
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htarra Thu, 06/19/2008 - 11:10

You need a minimum of SRST 4.1 to support these two IP Phone models;

Cisco Unified SRST 4.1 Supported Firmware, Platforms, Memory, and Voice Products

Have a look at this extract from:

Cisco Unified Survivable Remote Site Telephony


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