[cisco-voip] MGCP PRI Issue

[Heim, Dennis]

I have tried dms-100, 4ess, 5ess, and ni on the Cisco side.

Sent from my iPhone

On Mar 7, 2013, at 8:10 PM, "Ted Nugent" <tednugent73 at gmail.com<mailto:tednugent73 at gmail.com>> wrote:


Either reconfirm the nortel side is set as NI2 not NI (nortel's NI is not NI2 it's actually Nortel NI1 or what Cisco calls dms100) or try setting the Cisco side to DMS100 and see if that helps.

On Mar 7, 2013 7:38 PM, "Heim, Dennis" <Dennis.Heim at wwt.com<mailto:Dennis.Heim at wwt.com>> wrote:
I am running 15.1 IOS (3925) and Callmanager 8.6(1). We are integrated to a Nortel PBX, which is configured for PRI-NI2. When the gateway is configured for MGCP, the PRI largely does not come up. However, we see ISDN Q.931 messages referencing communication on channel 64. Obviously this is not quite right. Occasionally, the PRI will go into service and the message of channel 64 goes away. If we do a no mgcp/mgcp when it is working it usually does not come back up. If we switch to h.323/sip, the PRI comes up no problems.

Has anyone seen anything of this variety?

Dennis Heim | Sr. Unified Collaboration Team Lead
World Wide Technology | 314.212.1814<tel:314.212.1814> | dennis.heim at wwt.com<mailto:dennis.heim at wwt.com>
“Creating Impact, Ignition & Scalability”


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