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when trying to initiate an isdn call with a cisco 801, the system reports that there are no available b-channels even though there are

admin_2
Level 3
Level 3

Equipment: Cisco 801

SW VER: C800-Y6-MW version 12.2(5a)

When I try to dial out using 1 b-channel, the router reports that there are no free b-channels even though there is nothing else connected. The scenario works perfectly with a Cisco 1603.

1 Reply 1

Not applicable

You might ensure that there are ISDN CCB's

available ("sh isdn stat" should say

0 CCB's in use). "sh dialer" to

confirm that they don't think there

is a connection. If you reload the

router, or shut/no shut the interfaces

and the problem disappears, this could be

a SW bug and you may want to upgrade to

the latest 12.2 code possible.