BRI - Not Registering

Unanswered Question
Mar 30th, 2007

Cannot configure BRI via MGCP on Ciso 3845. The router cannot even establish multi frames

ISDN BRI0/3/0 interface

dsl 6, interface ISDN Switchtype = basic-net3

L2 Protocol = Q.921 0x0000 L3 Protocol(s) = CCM MANAGER 0x0003

Layer 1 Status:

ACTIVE

Layer 2 Status:

Layer 2 NOT Activated

Layer 3 Status:

0 Active Layer 3 Call(s)

Active dsl 6 CCBs = 0

The Free Channel Mask: 0x80000003

Please help

I have this problem too.
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Paolo Bevilacqua Fri, 03/30/2007 - 10:20

Are you using default tei or tei 0 perhaps?

Pls look at "debug isdn q921" with "term mon"

Remember that most switches will bring down L1 and L2 when inactive.

msolak Fri, 03/30/2007 - 12:43

hi,

mgcp bri backhaul is supported since ios 12.4.2T and only "etsi basic-net 3 in user mode".

do you have the right ios? can you post your config?

regards

mehmet

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