[cisco-voip] Failed call

[Kevin Thorngren]

Hi Nick,

Many times I have found that when a call disconnects after one ring  
there is a codec mismatch issue.  If there is no transcoder available  
then the call will be disconnected.

HTH,
Kevin
On Aug 15, 2005, at 7:06 AM, Nick Kassel wrote:

> I have an issue with one user dialling out, the user places a call and  
> the phone he is trying to dial will ring once then cut off and he then  
> gets an engaged tone.
> The call comes through to router and I get the following debug
>  
>         Bearer Capability i = 0x8090A3
>                 Standard = CCITT
>                 Transer Capability = Speech
>                 Transfer Mode = Circuit
>                 Transfer Rate = 64 kbit/s
>         Channel ID i = 0xA98388
>                 Exclusive, Channel 8
>         Calling Party Number i = 0x0081, '8682'
>                 Plan:Unknown, Type:Unknown
>         Called Party Number i = 0x80, '07989491108'
>                 Plan:Unknown, Type:Unknown
> *Mar 28 02:16:46.548: ISDN Se1/0:15 Q931: RX <- CALL_PROC pd = 8   
> callref = 0x838A
>         Channel ID i = 0xA98388
>                 Exclusive, Channel 8
> *Mar 28 02:16:52.486: ISDN Se1/0:15 Q931: RX <- ALERTING pd = 8   
> callref = 0x838A
> *Mar 28 02:16:52.686: ISDN Se1/0:15 Q931: TX -> DISCONNECT pd = 8   
> callref = 0x038A
>         Cause i = 0x8090 - Normal call clearing
> *Mar 28 02:16:52.878: ISDN Se1/0:15 Q931: RX <- RELEASE pd = 8   
> callref = 0x838A
> *Mar 28 02:16:52.882: ISDN Se1/0:15 Q931: TX -> RELEASE_COMP pd = 8   
> callref = 0x038A
>  
> Also when I try to dial the users DDI it will ring once on his phone  
> and I will get a continued ringing tone
> This is the debug I get, this has been working fine and stopped  
> working this morning
>   
>  
>       Bearer Capability i = 0x8090A3
>                 Standard = CCITT
>                 Transer Capability = Speech
>                 Transfer Mode = Circuit
>                 Transfer Rate = 64 kbit/s
>         Channel ID i = 0xA98382
>                 Exclusive, Channel 2
>         Progress Ind i = 0x8483 - Origination address is non-ISDN
>         Calling Party Number i = 0x2180, '7770820357'
>                 Plan:ISDN, Type:National
>         Called Party Number i = 0x81, '854682'
>                 Plan:ISDN, Type:Unknown
> *Mar 28 02:02:53.006: ISDN Se1/0:15 Q931: TX -> CALL_PROC pd = 8   
> callref = 0x8002
>         Channel ID i = 0xA98382
>                 Exclusive, Channel 2
> *Mar 28 02:02:53.438: ISDN Se1/0:15 Q931: TX -> ALERTING pd = 8   
> callref = 0x8002
>         Progress Ind i = 0x8188 - In-band info or appropriate now  
> available
> *Mar 28 02:03:07.381: ISDN Se1/0:15 Q931: TX -> DISCONNECT pd = 8   
> callref = 0x8002
>         Cause i = 0x80AF - Resource unavailable, unspecified
> *Mar 28 02:03:07.533: ISDN Se1/0:15 Q931: RX <- RELEASE pd = 8   
> callref = 0x0002
> *Mar 28 02:03:07.541: ISDN Se1/0:15 Q931: TX -> RELEASE_COMP pd = 8   
> callref = 0x8002
> *Mar 28 02:03:36.461: ISDN Se1/0:15 Q931: RX <- SETUP pd = 8  callref  
> = 0x0002
>  
>  
>
>
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