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New Member

ISDN Second B Channel Call Disconnect

I have two routers dialing into a central router using dialer-watch. The routers dial properly, however after the primary circuit comes up, the routers drop the calls, logs show both channels disconnect from the number. However in show dialer it shows call state as call being disconnected. This is only happening on the second B channel as the first is properly diconnected. It appears that either the release or release_comp is being ignored or dropped somewhere. These are 17xx routers running 12.1(5)10T. Any bugs i couldnt find? Thanks.

2 REPLIES
Silver

Re: ISDN Second B Channel Call Disconnect

The "release complete" might be issued ,there could be a bug in the equipment used by you which might cause the calls to be dropped.

New Member

Re: ISDN Second B Channel Call Disconnect

After firther review, the q.931 debug shows a disconnect for the first B channel, but not for the second, on either side. Does that help? shounds to me like maybe an IOS bug.

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