Multilevel Precedence and Preemption in CCM 6.x

Unanswered Question
Sep 2nd, 2009

Can we do MLPP IP to IP. In the following scenery Manager - A want to call anyone of the employee IP Phone; even the employee is in the call or hold, this can be achieved by MLPP, please light me on MLPP solution.

I have this problem too.
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Nicholas Matthews Wed, 09/02/2009 - 05:56

CUCM supports MLPP over SIP. As well, the gateway should as well.

Here is a sample dial peer:

dial-peer voice 2345 voip

destination-pattern 2345

voice-class sip resource priority namespace dsn

voice-class sip resource priority mode strict

session protocol sipv2

session target ipv4:

As well, with CUBE 1.3 in 12.4(22)YB, you can do header and SDP passing which means you can transparently pass any proprietary signaling through. While the MLPP code is not proprietary because it is designed to interop with military SIP trunks, you may find additional ease in configuration by doing this.


BALAMURUGAN SINGARAM Wed, 09/02/2009 - 20:37

I am having CUCM 6.x DN number as follows A-1001, B-1002 and C- 1003.

Here A is manager, when he call B or C, even when B& C is in other call, that call should get disconnected and the Call A should be connected.

I try translation pattern 90.100x with MLPP setting to Executive Override, this pattern can be call by only manager - A [1001] phone B&C are MLPP Indication enable premption - disable.

In IPPhone a 1001 MLLP Indication enabled, premption - disable.

But the NLPP is not working for me. I am able to call with MLPP symbol.

Please light me do I missing any thing in my config.


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