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E1 "no cct channel available"

mailaglady2
Level 1
Level 1

Hi

I have configured E1 to use PVDm to terminate ISDN connection but I keep on getting the above error message, can you please view my config and see if you can't spot a mistake.

Layer 1 and 2 seem to be working fine but layer connection isn't working.

Kind regards

Mpho

1 Reply 1

anisaini
Level 1
Level 1

From the config it appears you are using ISDN to make modem calls.

Assuming that you are using correct cards for this setup.

for ISDN PRI: T1/E1-PRI 

for MODEM ----PVDM2-XXDM

for ref:

http://www.cisco.com/en/US/docs/ios/12_4t/12_4t11/htpvdm2.html#wp1051926

MULTIPLE_FRAME_ESTABLISHED>>>>>>>>means your isdn layer2/3 ok

line 0/451 0/486

modem Dialin>>>>>>>try modem inout, as dialin is just for incoming calls

transport input all

You need to have modem inout for making out calls assuming you are making out calls.

if still doesnt work please collect the following debugs while making a call

debug isdn q931

debug  isdn err

debug isdn eve

also try to make call to any of your phones with just the ISDN config(remove modem config) this will help isolate if isue specific to ISDN connection.

Reply if it helps

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