[cisco-voip] Calling Name from PSTN over a Inter-Cluster H.323 (QSIG) Trunk

[Matthew Linsemier]

Hello all,

We are currently working on migrating from an existing CallManager 4.1(3)
cluster to a fresh install of CallManager 6.1(2) in our environment.  In our
4.1(3) environment, our gateways are configured with MGCP with both calling
name and number displayed from the PSTN.  I have configured a non-gateway
controlled Inter-Cluster H.323 (QSIG) trunk between the two clusters, set up
a few route patterns, and calls are working back and fourth.

I have noticed that calling name is only working from subscribers on the
CallManager 4.1(3) cluster, and not incoming calls from the PSTN network
which enter that cluster, and then route to the new CallManager 6.1(2)
cluster over the Inter-cluster trunk.

Caller [Matt/1234] --> MGCP GW [Matt/1234] --> CM4.1(3) [Matt/1234] -->
Trunk --> CM6.1(2) [1234] --> Phone only displays [1234] with no name.

Is there a way to pass this PSTN caller ID information on or is this a
limitation?   Our hopes were to maintain the same functionality (outside
calling name) as we migrate users from one cluster to another.

Any input would be greatly appreciated.

Matt

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