Cisco 3945 and ISDN status TEI_Assigned,

[yeruel77]

Hello Cisco Support,

i face problem. I registered Cisco 3945 gateway as MGCP in CUCM. the status is registered in cucm.

it is fetched from CUCM. mgcp also enabled.

E1 channel connected to Provider Side, by show ISDN status

the result Layer 1 is active, but layer 2 is TEI_Assigned. i took so many times to discussed with provider. their switch and Cisco 3945 don't have parallel channel. their D-channel is serial interface 16. but cisco 3945 D-channel is 15. can i change the channel accordingly? if so how to change?

To implement Cisco 3945 in our country is first time. please any help?

[evlaa1990]

What was the issue? Provider?

[yeruel77]

Yes. the problem was provider modem. 

[evlaa1990]

Also post out put from show controller e1

[Chris Deren]

Your Isdn switch type is set as QSIG which is normally used for integrations to other PBXes not telco provider, confirm with the provider expected switch type.

[Chris Deren]

port 16 is the same as 15 as it starts with 0 and there is no way to adjust it since this is standard.

Please post "debug isdn q921".

[bichacko]

So basically the d-channel counting starts from 0 in case of Cisco.

When you say d-channel for Cisco is '15', it actually means starting from 0 to 15 which if we start from 1 is actually the 16th channel.

here is a document that you can refer to:

http://www.cisco.com/c/en/us/td/docs/ios/12_2/dial/configuration/guide/fdial_c/dafchant.pdf

Also, for layer 2 as tei_assigned i would suggest that you check the following :

++ confirm with the provider that they have set themselves as "network".

++ also ensure that the isdn switch type matches on both ends,

you can run the following command and see if the switchtype matches:

# sh isdn status

You can apart from that use the following to debug any issues:

===============================================

debug isdn q931

show isdn status

Use these to verify that the circuit is up and trying to send/receive calls.

debug isdn q931

show isdn history

debug voip dialpeer all

show call active voice