Unable to make a call through FXO ports to PSTN

Unanswered Question
Jul 10th, 2009

Hello,

I've got 2821 router with some FXO ports in a trunkgroup:

voice-port 0/0/0

trunk-group city

cptone RU

timing hookflash-out 500

connection plar 25630

description -= Krsn line 25630 =-

!

voice-port 0/0/1

trunk-group city

dial-type pulse

cptone RU

timing hookflash-out 500

connection plar 4220

description -= Krsn line 05070 =-

!

voice-port 0/0/2

trunk-group city

dial-type pulse

cptone RU

timing hookflash-out 500

connection plar 4216

description -= Krsn line 25082 =-

!

voice-port 0/0/3

trunk-group city

dial-type pulse

cptone RU

timing hookflash-out 500

connection plar 4205

description -= Krsn line 25083 =-

!

voice-port 0/1/0

trunk-group city

dial-type pulse

cptone RU

timing hookflash-out 500

connection plar 4209

description -= Krsn line 25084 =-

!

voice-port 0/1/1

trunk-group city

dial-type pulse

cptone RU

timing hookflash-out 500

connection plar 4246

description -= Krsn line 25086 =-

!

voice-port 0/1/2

trunk-group city

dial-type pulse

cptone RU

timing hookflash-out 500

connection plar 4247

description -= Krsn line 25106 =-

!

voice-port 0/1/3

trunk-group city

dial-type pulse

cptone RU

timing hookflash-out 500

connection plar 4203

description -= Krsn line 25073 =-

!

voice-port 0/2/0

trunk-group city

dial-type pulse

cptone RU

timing hookflash-out 500

connection plar 4208

description -= Krsn line 25074 =-

dial-peer voice 100 pots

trunkgroup city

destination-pattern 98..........

prefix 8,,

!

dial-peer voice 110 pots

trunkgroup city

description -= Calls Via City Lines =-

service mgcpapp

destination-pattern 9[12345679]....

forward-digits 5

The problem is:

approx. 1/3 of all outgoing calls from IP phones to PSTN return immediate short disconnect tones, while ALL of voice ports of the trunk group are NOT busy (dorm,on-hook).

debug voice ccapi error gives:

*Jul 10 16:06:42.757: //4859/xxxxxxxxxxxx/CCAPI/ccGetCallGCID:

Bad Call ID: callEntry=NULL

*Jul 10 16:06:42.757: //4859/xxxxxxxxxxxx/CCAPI/ccSetCallGCID:

Bad Call ID: callEntry=NULL

What does this mean?

Also, debug voice ccapi inout gives:

*Jul 10 16:29:21.773: //4889/009312161511/CCAPI/cc_api_call_disconnected:

Cause Value=34, Interface=0x4927636C, Call Id=4889

*Jul 10 16:29:21.773: //4889/009312161511/CCAPI/cc_api_call_disconnected:

Call Entry(Responsed=TRUE, Cause Value=34, Retry Count=0)

As i remember, Cause Value=34 is " no circuit/channel available"

Any advice will be appreciated.

Thanks in advance.

I have this problem too.
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Nicholas Matthews Mon, 07/13/2009 - 10:20

Hi Nathan,

The few snippets you sent are not related to your problem. They just have the word "bad" in them :)

We normally do not see cause value 34 for FXO ports. The remaining options are that the ports are getting stuck, or you have dial peer/plan problems and you are routing your calls somewhere else or all fighting for a single port. Very hard to say without more information.

-nick

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