[cisco-voip] ISDN Q931 - Quality of Service not available ?

Tue Feb 22 07:41:13 EST 2011

Codec perhaps? or ulaw/ alaw?

I think you would need to do some "debug h225" (asn1?) or perhaps "debug cch323" or "debug ccapi inout" to see the call setup logs (for the call leg from the H323 gw to the CUCM, instead of ISDN)? or perhaps h245 capabilities exchange?

Just guessing now sorry.

Hope this helps a little however.

________________________________
From: Erich Novak [Erich.Novak at nts.at]
Sent: Tuesday, 22 February 2011 8:40 PM
To: Dana Tong
Cc: Wes Sisk; cisco-voip at puck.nether.net
Subject: Re: [cisco-voip] ISDN Q931 - Quality of Service not available ?

Hi,

Yes the phone I'm trying to reach is dn 64 .

If I change the gateway from h323 to a SiP Trunk with the same Inbound CSS it works like a charm!

Right now it is running via SIP, just wanted to know why it is not working via H323

Brgds
Erich

Von meinem iPhone gesendet

Am 22.02.2011 um 08:09 schrieb "Dana Tong" <Dana.Tong at ivision.com.au<mailto:Dana.Tong at ivision.com.au>>:

Perhaps also the inbound CSS on the H323 gateway.

Plus the Called Party number is "64". Kind of odd, but do you an a DN equal to 64 that exists in a partition reachable by the inbound CSS of the gateway?

Cause i = 0x80B1

The origination code of 80 means that the gateway is rejecting the call. I suspect it is trying to hit the CUCM and CUCM is rejecting it because of the point above and not able to route to "64".

Cheers

Dana

-----Original Message-----
From: cisco-voip-bounces at puck.nether.net<mailto:cisco-voip-bounces at puck.nether.net> [mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Wes Sisk
Sent: Friday, 18 February 2011 9:23 AM
To: Erich Novak
Cc: <mailto:cisco-voip at puck.nether.net> cisco-voip at puck.nether.net<mailto:cisco-voip at puck.nether.net>
Subject: Re: [cisco-voip] ISDN Q931 - Quality of Service not available ?

"Cause 49 / Code B1: Quality of Service not available"

you may be running into a bit of interesting translation here.  CM can return code 49 for codec mismatch or transcoder allocation failure.

alternatively it looks like this is the code that is used when RSVP reservation is required but fails.

Regards,

Wes

On 2/17/2011 2:34 PM, Erich Novak wrote:

> Hi Group,

>

> had anyone ever had that problem, its a standard H.323 Gateway, correct dial-peers are matched, no config difference to any other gateway that is working.

>

> Feb 17 16:22:28.884: ISDN Se0/2/0:15 Q931: RX<- SETUP pd = 8  callref = 0x023C

>             Bearer Capability i = 0x8090A3

>                             Standard = CCITT

>                             Transfer Capability = Speech

>                             Transfer Mode = Circuit

>                             Transfer Rate = 64 kbit/s

>             Channel ID i = 0xA98381

>                             Exclusive, Channel 1

>             Calling Party Number i = 0x1183, '43xxxxxxxx'

>                             Plan:ISDN, Type:International

>             Called Party Number i = 0x81, '64'

>                             Plan:ISDN, Type:Unknown

>             Sending Complete

> Feb 17 16:22:28.884: ISDN Se0/2/0:15 Q931: Received SETUP  callref =

> 0x823C callID = 0x00C5 switch = primary-net5 interface = User Feb 17 16:22:28.904: ISDN Se0/2/0:15 Q931: TX ->  CALL_PROC pd = 8  callref = 0x823C

>             Channel ID i = 0xA98381

>                             Exclusive, Channel 1

> Feb 17 16:22:28.912: ISDN Se0/2/0:15 Q931: TX ->  DISCONNECT pd = 8  callref = 0x823C

>             Cause i = 0x80B1 - Quality Of Service not available Feb 17

> 16:22:29.028: ISDN Se0/2/0:15 Q931: RX<- RELEASE pd = 8  callref =

> 0x023C Feb 17 16:22:29.032: ISDN Se0/2/0:15 Q931: TX ->  RELEASE_COMP

> pd = 8  callref = 0x823C

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