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Voice over IP: ISDN PRI Voice E1 - Calling Out problmes (PSTN)

Answered Question
Jun 22nd, 2009
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Hi All,


Has anyone seen this before in a 'debug isdn q931' on a H323 gateway.


*Jun 15 07:39:03.893: ISDN Se0/2/1:15 **ERROR**: CCPMSG_OutCall: fails with cause 0x22.


When I am trying to call out side getting busy signal.The incoming calls working fine. But some times it working without any problems.


Please go through the attached configs...


Thanks

Ilyas



Correct Answer by paolo bevilacqua about 8 years 1 month ago

Hi, you have major problems on the physical circuit, have telco fix it.


Please send output of "show controllers e1" and "show network-clocks" just for an additional check.


Do not use attachments unles necessary.

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paolo bevilacqua Tue, 06/23/2009 - 01:38
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Please send the complete debug.

paolo bevilacqua Tue, 06/23/2009 - 10:02
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Complete debug isdn q931 for the failed call.

ilyasrahiman Wed, 06/24/2009 - 13:13
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please go through the debugs...


In this the first call failed to go out, but the second call connected after 3-4 min.



Thanks




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Correct Answer
paolo bevilacqua Wed, 06/24/2009 - 13:51
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Hi, you have major problems on the physical circuit, have telco fix it.


Please send output of "show controllers e1" and "show network-clocks" just for an additional check.


Do not use attachments unles necessary.

ilyasrahiman Wed, 06/24/2009 - 20:46
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10.31.144.2#sh controllers e1

E1 0/2/0 is administratively down.

E1 0/2/1 is up.

Applique type is Channelized E1 - balanced

Cablelength is Unknown

No alarms detected.

alarm-trigger is not set

Version info Firmware: 20080918, FPGA: 13, spm_count = 0

Framing is CRC4, Line Code is HDB3, Clock Source is Line.

Data in current interval (351 seconds elapsed):

0 Line Code Violations, 0 Path Code Violations

0 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins

0 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs

Total Data (last 24 hours)

0 Line Code Violations, 0 Path Code Violations,

0 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins,

0 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs

10.31.144.2#


10.31.144.2#sh network-clocks

Network Clock Configuration

---------------------------

Priority Clock Source Clock State Clock Type


1 E1 0/2/1 GOOD E1

10 Backplane GOOD PLL


Current Primary Clock Source

---------------------------

Priority Clock Source Clock State Clock Type


1 E1 0/2/1 GOOD E1


10.31.144.2#

*Jun 25 04:49:30.483: ISDN Se0/2/1:15 Q931: Applying typeplan for sw-type 0x12 is 0x0 0x1, Calling num 73845

*Jun 25 04:49:30.483: ISDN Se0/2/1:15 Q931: Sending SETUP callref = 0x02D4 callID = 0x8260 switch = primary-net5 interface = User

*Jun 25 04:49:30.483: ISDN Se0/2/1:15 Q931: TX -> SETUP pd = 8 callref = 0x02D4

Sending Complete

Bearer Capability i = 0x8090A3

Standard = CCITT

Transfer Capability = Speech

Transfer Mode = Circuit

Transfer Rate = 64 kbit/s

Channel ID i = 0xA9839F

Exclusive, Channel 31

Calling Party Number i = 0x0181, '73845'

Plan:ISDN, Type:Unknown

Called Party Number i = 0x80, '141'

Plan:Unknown, Type:Unknown

10.31.144.2#


In this output the E1 was up - able to call outside..., will try to get the down time output if necessary

ashraf1891 Thu, 06/25/2009 - 12:48
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Hey Brother


Is your gateway is registerd as MGCP or H323?!?!


your description is H323 but the configuration is MGCP.


so under the interface Serial0/2/1:15 you should bind the layer 3 to the CCM (isdn bind l3 ccm).

also in the pri group configuration you should but service MGCP (pri-group timeslots 1-31 service MGCP)


another thing if its MGCP you will never need those VOIP dial-peers.

coz your channel whill be backholed in the CCM. make sure in the CCM that you configured the Chanel B maintenance on the service parameter.

after that just stop MGCP by no MGCP and turn it on again.


HTH

ilyasrahiman Thu, 06/25/2009 - 13:10
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One port is H323 config - working one.

But I have tested the other port using MGCP.

paolo bevilacqua Thu, 06/25/2009 - 14:22
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Please use h.323 for testing.

MGCP is often unreliable.

ilyasrahiman Sat, 06/27/2009 - 07:01
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Teleco team working on the PRI, they told me that there is some issues related with channeling. Once it resolved I will update the details.


Thanks...

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