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PRI Dial-out problem

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hitesh - 26 Feb 2010

Posted on www.erlang.com

i am unable to dial out through PRI.I am getting error message 488 not acceptable here.
I am using sip server and audiocodec as mediant

Rajendra Prasad - 2 Oct 2009

Posted on www.erlang.com

when i debugq.931 i recived masg. service/option not available,unspecified(cause i=0x82BF)

kindly help for the same.

S. Sekou Abodunrin - 22 Sep 2004

Since you are getting an error like Cause i = 0x8281 - Unallocated/unassigned number it implies that there is a problem with the syntax that you are using for outbound calls. are you using the e.164 scheme? are you placing your calls with a numbering like 00442073403621?
when you use this numbering scheme to make outbound calls to other countries i guess that should work.

Your Cisco gateway needs to be configured to recognise the country code, area code etc this way some digit stripping will occur and the call goes out as expected.

Nitin - 24 Sep 2003

Hi,

I would like to know more about Q931 debug messages.If anyone cud help in this.

Nitin

voip123 - 18 Aug 2003

You can mess around with the TON settings, like Vurcos mentioned. Also, I have seen this problem numerous times.

Some switches do not like the bearer capability to be 3.1 Khz audio. Under your voice port, please set "bearer speech" Try the call then to see if it works. If it still does not, try adjusting your TON.

Vurcos - 12 Aug 2003

What is the the Information Element of the Progress Indicator? Have you looked and the TON?

Ahsan Ullah Khan - 23 Jul 2003

Here is the debug q931 output for dial-out calls, which failed.

*Mar 3 23:11:19.243: ISDN Se0/0:15 Q931: TX -> SETUP pd = 8 callref = 0x0023

Bearer Capability i = 0x9090A3

Standard = CCITT

Transer Capability = 3.1kHz Audio

Transfer Mode = Circuit

Transfer Rate = 64 kbit/s

Channel ID i = 0xA9839F

Exclusive, Channel 31

Calling Party Number i = 0x91, '211'

Plan:ISDN, Type:International

Called Party Number i = 0x91, '730288'

Plan:ISDN, Type:International

*Mar 3 23:11:19.536: ISDN Se0/0:15 Q931: RX RELEASE pd = 8 callref = 0x0023

*Mar 3 23:11:20.337: ISDN Se0/0:15 Q931: RX SETUP pd = 8 callref = 0x0025

Bearer Capability i = 0x9090A3

Standard = CCITT

Transer Capability = 3.1kHz Audio

Transfer Mode = Circuit

Transfer Rate = 64 kbit/s

Channel ID i = 0xA9839F

Exclusive, Channel 31

Calling Party Number i = 0x91, '211'

Plan:ISDN, Type:International

Called Party Number i = 0x91, '0215889249'

Plan:ISDN, Type:International

*Mar 3 23:12:29.475: ISDN Se0/0:15 Q931: RX RELEASE pd = 8 callref = 0x0025

*Mar 3 23:12:30.256: ISDN Se0/0:15 Q931: RX

Ahsan Ullah Khan - 23 Jul 2003

Hi,
We have two both way PRIs (E1) connected to 2651 Multiflex trunk E1 with Alcatel Switch at PSTN end. The incoming calls are working fine, but we have problem in dialing out, we got the following cause codes for disconnection from switich:
Cause i = 0x82BF - Service/option not available, unspecified
Cause i = 0x8281 - Unallocated/unassigned number
Can anyone help us out urgently.

Thanks.

Ahsan

For reference following are the debugg q931 output for dial-in and dial-out.

Dial-in ( it works fine)

*Mar 4 20:07:57.694: ISDN Se0/0:15 Q931: RX CALL_PROC pd = 8 callref = 0x8014

Channel ID i = 0xA98391

Exclusive, Channel 17

*Mar 4 20:07:57.715: ISDN Se0/0:15 Q931: TX -> CONNECT pd = 8 callref = 0x8014

*Mar 4 20:07:58.123: ISDN Se0/0:15 Q931: RX RELEASE pd = 8 callref = 0x8014

*Mar 4 20:08:29.483: ISDN Se0/0:15 Q931: RX SETUP pd = 8 callref = 0x0023

Bearer Capability i = 0x9090A3

Standard = CCITT

Transer Capability = 3.1kHz Audio

Transfer Mode = Circuit

Transfer Rate = 64 kbit/s

Channel ID i = 0xA9839F

Exclusive, Channel 31

Calling Party Number i = 0x91, '211'

Plan:ISDN, Type:International

Called Party Number i = 0x91, '730288'

Plan:ISDN, Type:International

*Mar 3 23:11:19.536: ISDN Se0/0:15 Q931: RX RELEASE pd = 8 callref = 0x0023

*Mar 3 23:11:20.337: ISDN Se0/0:15 Q931: RX SETUP pd = 8 callref = 0x0025

Bearer Capability i = 0x9090A3

Standard = CCITT

Transer Capability = 3.1kHz Audio

Transfer Mode = Circuit

Transfer Rate = 64 kbit/s

Channel ID i = 0xA9839F

Exclusive, Channel 31

Calling Party Number i = 0x91, '211'

Plan:ISDN, Type:International

Called Party Number i = 0x91, '0215889249'

Plan:ISDN, Type:International

*Mar 3 23:12:29.475: ISDN Se0/0:15 Q931: RX RELEASE pd = 8 callref = 0x0025

*Mar 3 23:12:30.256: ISDN Se0/0:15 Q931: RX

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