Category Archive: CME

Aug 15

CUCME SRST Licensing – IOS 15.1

On our router the CUCME SRST licensing is showing evaluation although we bought routers routers along with CUCME SRST bundle. So, asked supplier and got clarification from Cisco that its a right to use license and will remain like this after accepting EULA. All CUCME SRST feature will work as usual and there will no functionality limitation.

    IOS Version Cisco IOS …

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Aug 15

CUCME SRST Common Issues

In this post I will list the common issues faced during CUCME SRST deployment.

Source IP AddressIn the simple SRST config on a Cisco router you can use HSRP address as source IP address. However, for CUCME SRST mode you will have to provide a non virtual IP address i,e interface IP otherwise phone registration will fail.

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Aug 15

SRST Sample Config

In this post I am going to explain a sample config that can be used for SRST Config. This config can be used in a scenario where we want to provide some fall back support for phones on a remote when link to Primary and Secondary Call Manager is no longer available. Now, if …

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Aug 14

CUCME SRST – Time Of Day Routing for Hunt Groups

I had to provide TOD routing for some hunt groups during my recent CUCME SRST deployment. During normal operations these hunt groups are managed by Call Manager and so are the routing decisions for these hunt group. However the same need to be reflected if link to Call Manager fails and CUCME router in SRST mode.  Now this …

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Jun 24

Cisco CME SRST Lab Guide

Recently I had to built a Lab to test the functionality of Cisco Unified Call Manager Express in SRST Mode and it didnt proved to be an easy job. The problem I faced was that most of information related to this topic is scattered around and there is no definite quide. So, I decided to write …

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