Thursday, February 9, 2012

ISDN shows TEI_ASSIGNED status on MGCP gateway

My environment:  IOS 12.4(23)T3 advanced enterprise, 2821

When I try to config the MGCP using the ccm-manager config server, in "show ccm-manager" it shows the gateway is registered to UCM successfully:

Priority        Status                   Host
============================================================
Primary         Registered               192.168.20.2
First Backup    Backup Ready             192.168.20.1
Second Backup   None                     

However when I do "show isdn status", the Layer 2 status shows:

State = TEI_ASSIGNED

A router reload solved the problem, you should see

State = MULTIPLE_FRAME_ESTABLISHED

in "show isdn status" Layer 2 status.


3 comments:

Boris said...

reset gw in CUCM and reload the router

OR

reset gw in CUCM and

conf t
voice-port 0/0/0:23
shut
inter ser 0/0/0:23
no isdn bind-l3
controll t1 0/0/0
shut
no shut
inter ser 0/0/0:23
isdn bind-l3 ccm
no mgcp
mgcp

Panda eats bamboo said...

Thanks Boris, I tried your second method, although it shows MULTIPLE_FRAME_ESTABLISHED, the call cannot route through and reload the router is the only way I have found it working.

@MCLNicolas said...

Because you have to do:

no mgcp bind control source-interface ..
mgcp bind control source-interface ..

no mgcp
mgcp

show isdn status

try to call and it will work :)