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AAR with Extension Mobility

Hi All,

I have setup AAR at a customer. They currently have 3 sites, each with an SRST router and PRI breakout.

There is a single centralized callManager cluster to which all of the phones register.

Currently, AAR works as expected. ie : When an inter-branch call is attempted, the rules of the allocated location B/W apply and rerouting externally occurs when the max calls are exceeded per location.

Problem comes in when a roaming (Extension Mobility) user from Site 1 logs into a phone at a remote site (Site 2).

  • All of the AAR settings on the phone configuration is setup for Site 2, but the users AAR group in the line configuration is configured for Site 1
      • The AAR does not function as it should due to the above fact i'll assume and the Bandwidth Exceeded message with a ringout tone occur.
      • As mentioned , AAR works normally if a user for Site 2 logs into a phone from Site 2 and the same applies to Site 1.

Can someone help as to what the best practise for AAR with EM is in this kind of scenario please ?

Thanks in advance.


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