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Cause i = 0x82AC - Requested circuit/channel not available for E1 Circuit

maybelynplecic
Level 5
Level 5

Scenario: Inbound works no problem, you see it come in on channel 1. But when you send an outbound call, it does not route and gives you error message below with disconnect code 44.

You get the following message when sending out a call to PSTN with debug voice ccapi inout:

*Jun 22 00:40:11.840: ISDN Se0/2/0:15 Q931: RX <- RELEASE_COMP pd = 8 callref = 0x809C
Cause i = 0x82AC - Requested circuit/channel not available
*Jun 22 00:40:11.841: //68/00BA1EBA1200/CCAPI/cc_api_call_disconnected:
Cause Value=44, Interface=0x7FA79A3C46A0, Call Id=68
*Jun 22 00:40:11.841: //68/00BA1EBA1200/CCAPI/cc_api_call_disconnected:
Call Entry(Responsed=TRUE, Cause Value=44, Retry Count=0)
*Jun 22 00:40:11.841: //67/00BA1EBA1200/CCAPI/ccCallReleaseResources:
release reserved xcoding resource.
*Jun 22 00:40:11.841: //68/00BA1EBA1200/CCAPI/ccCallSetAAA_Accounting:
Accounting=0, Call Id=68

Option: You enable the following command on your isdn bchan-number-order ascending

interface Serial0/2/0:15
no ip address
encapsulation hdlc
isdn bchan-number-order ascending
isdn switch-type primary-net5
isdn incoming-voice voice
isdn supp-service name calling
no cdp enable
!

Result: Call routes the top down channel but this doesn't tell you if you really have all channels and not a partial circuit for E1. 

Next Step: I was using the non-emegency dialing for 101 to test outbound and made a script below on notepad to find out what the highest channel they had starting from 1-31.

*** Remove the isdn bchan-number-order ascending so that the call routes using default bottom up. ***

interface Serial0/2/0:15
no ip address
encapsulation hdlc
no isdn bchan-number-order ascending

voice-port 0/2/0:15
no shut

controller E1 0/2/0
shut
clock source line primary
pri-group timeslots 1-30
no shut

dial-peer voice 20 pots
description ** OUTBOUND NON EMERGENCY NUMBER **
preference 1
destination-pattern 101
port 0/2/0:15

** Needed to re-add port for dial-peer voice 20 pots, since it removes it when I changed the pri-group timeslots; which requires you to shutdown the voice-port and he controller. This removes the port assigned in the dial-peers. Make sure to re-add the ports on the pots dialers for outbound.**

### Test outbound call - if it fails continue. ###

voice-port 0/2/0:15
no shut

controller E1 0/2/0
shut
clock source line primary
pri-group timeslots 1-29
no shut

dial-peer voice 20 pots
description ** OUTBOUND NON EMERGENCY NUMBER **
preference 1
destination-pattern 101
port 0/2/0:15

### Test outbound call - if it fails continue. ###

voice-port 0/2/0:15
no shut

controller E1 0/2/0
shut
clock source line primary
pri-group timeslots 1-29
no shut

dial-peer voice 20 pots
description ** OUTBOUND NON EMERGENCY NUMBER **
preference 1
destination-pattern 101
port 0/2/0:15

Final result: Found that they only had 12 channels and not the full E1.

voice-port 0/2/0:15
no shut

controller E1 0/2/0
shut
clock source line primary
pri-group timeslots 1-12
no shut

dial-peer voice 20 pots
description ** OUTBOUND NON EMERGENCY NUMBER **
preference 1
destination-pattern 101
port 0/2/0:15

I hope this saves someone time, since I didn't see useful posts regarding this issue.

Best Regards,

Maybelyn

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