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New Member

Failed calls over Digital PRI - ISDN with CCM 5.1 with 2801 ISR

I have a couple Cisco ISR 2801 routers running c2801-spservicesk9-mz.124-9.T3.bin IOS.

I am getting the follwing error on my ISDN calls across the (Verizon) PRI:

Cause i = 0x82E3 - Information element not implemented

I have the following configuration on my

Call Manager for the PRI:

Calling Party Presentation: Default

Calling Party Selection: Originator

Called party IE number type: unknown

Calling party IE number type: National

Called Numbering Plan: Unknown

Calling Numbering Plan: ISDN

Any suggestions on what the problem is?

4 REPLIES

Re: Failed calls over Digital PRI - ISDN with CCM 5.1 with 2801

82 stands for "Identified Channel Does Not Exist". This could be a telco problem with their provisioning. Can you also paste your configs on the controller and serial interface (s0/0:23 or smilar) ?

New Member

Re: Failed calls over Digital PRI - ISDN with CCM 5.1 with 2801

Controller config is:

controller T1 0/0/1

framing esf

linecode b8zs

pri-group timeslots 1-24 service mgcp

Serial config is:

interface Serial0/0/1:23

no ip address

encapsulation hdlc

isdn switch-type primary-ni

isdn incoming-voice voice

isdn bind-l3 ccm-manager

no cdp enable

Hall of Fame Super Gold

Re: Failed calls over Digital PRI - ISDN with CCM 5.1 with 2801

Possibly the switch doesn't like the name IE.

On the router please do "term mon" and "debug isdn q931" to see the complete call progress.

New Member

Re: Failed calls over Digital PRI - ISDN with CCM 5.1 with 2801

I found the problem. I had the Call Number Plan and Calling Number Plan reversed, and the call was being sent back from the carrier.

Thanks everyone!!

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