[cisco-voip] Requested circuit/channel not available

[Tim Smith]

Hi mate,

What does "show isdn service" say?
When you changed it to reverse order, did you see it request Channel 1, and still get knocked back by BT?

There are a few other things you could test on your side, but I think you are on the right track. I'd log a call with BT and ask them why they are rejecting your calls.

Cheers,

Tim

From: cisco-voip [mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Hefin James [ahj]
Sent: Wednesday, 2 April 2014 8:20 AM
To: cisco-voip at puck.nether.net
Subject: [cisco-voip] Requested circuit/channel not available

Hi,

Started to get this issue this morning with one of our MGCP gateways.
Incoming calls are working correctly on an ISDN30, but outgoing calls are being denied, and re-routed via a backup route.
Outgoing calls are hitting the gateway, but is getting a 'Requested circuit/channel not available' See trace below.

I've tried to change the channel selection order, but still the same.
I've checked everything that I can think of, and I'm beginning to think that this is a Telco issue, but thought that I'd  ask the group to see if there is anything else to check before I take it up with BT.

Thanks,
Hefin

2014-04-01 22:07:55 local3/7  Apr  1 21:07:54.602: ISDN Se0/0/0:15 Q931: TX -> SETUP pd = 8  callref = 0x0004
2014-04-01 22:07:55 local3/7    Sending Complete
2014-04-01 22:07:55 local3/7    Bearer Capability i = 0x8090A3
2014-04-01 22:07:55 local3/7            Standard = CCITT
2014-04-01 22:07:55 local3/7            Transfer Capability = Speech
2014-04-01 22:07:55 local3/7            Transfer Mode = Circuit
2014-04-01 22:07:55 local3/7            Transfer Rate = 64 kbit/s
2014-04-01 22:07:55 local3/7    Channel ID i = 0xA9839F
2014-04-01 22:07:55 local3/7            Exclusive, Channel 31
2014-04-01 22:07:55 local3/7    Calling Party Number i = 0x0081, '2456'
2014-04-01 22:07:55 local3/7            Plan:Unknown, Type:Unknown
2014-04-01 22:07:55 local3/7    Called Party Number i = 0x80, '622456'
2014-04-01 22:07:55 local3/7            Plan:Unknown, Type:Unknown
2014-04-01 22:07:55 local3/7  Apr  1 21:07:54.682: ISDN Se0/0/0:15 Q931: RX <- RELEASE_COMP pd = 8  callref = 0x8004
2014-04-01 22:07:55 local3/7    Cause i = 0x82AC - Requested circuit/channel not available
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