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Migrating PRI circuits from Nortel Option 81 to Cisco ISR 2921 MGCP Gateway

Migrating PRI circuits from Nortel Option 81 to Cisco ISR 2921 MGCP Gateway

Migrating PRI circuits from Nortel Option 81 to Cisco ISR 2921 MGCP Gateway

(OP)
Hello,

We are migrating two ATT (Legacy Pac Bell) PRI's that are currently connected to an Option 81 PBX over to a Cisco ISR 2921 voice gateway using MGCP. The layer 2 and layer 3 come up when they connect to the Cisco gateway card, and Multiple Frames Established is shown in the CLI, but no calls can be processed. When a debug q.931 is ran, there are messages that come up stating that individual channels are trying to reset or something to that effect. I don't have the syntax since we had to reconnect to the PBX. Any ideas what may be missing?

Thanks!

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