[cisco-voip] Pressing Confrn Causes Call To Disconnect?

Wes Sisk wsisk at cisco.com
Fri Jul 31 11:03:44 EDT 2009


Hi Adam,

As a courtesy to everyone in the community please do not hijack existing 
threads.  For a new question please begin a new thread.  I have not seen 
or heard any limit placed on number of active discussions.  If you are 
encountering any limitation please let us know so we can take it up with 
the moderators and admins.

Regards,
Wes

On Friday, July 31, 2009 10:04:38 AM , Curtis, Adam 
<ACurtis at pizzagalli.com> wrote:
>
> Over the couple of days our users have noticed that if they are on a 
> call and want to conference someone else in they press the *Confrn* 
> button, dial the number and the person answers, but when they press 
> the *Confrn* button again one or both parties are dropped from the 
> call. Is this a codec issue? If so, what log traces should I be 
> looking for? I tried this with a remote site, cell phone, and internal 
> phones and it always disconnects but if I conference in voicemail and 
> they auto attendant it works fine.. Any ideas would be greatly 
> appreciated!
>
>  
>
> Thank you,
>
>  
>
> *Adam Curtis*
>
> *Pizzagalli Construction Company*
>
> *IT Support Technician*
>
> *(802) 651-1319*
>
>  
>
>  
>
> *From:* cisco-voip-bounces at puck.nether.net 
> [mailto:cisco-voip-bounces at puck.nether.net] *On Behalf Of *Wes Sisk
> *Sent:* Thursday, July 30, 2009 10:31 AM
> *To:* Leslie Meade
> *Cc:* cisco-voip at puck.nether.net
> *Subject:* Re: [cisco-voip] intermittent missing outbound ring tone
>
>  
>
> Hi Leslie,
>
> The next messages after setup are the ones that determine how the user 
> hears ringback.  If the PSTN sends Proceeding, Alerting, or Facility 
> with a Progress Indicator IE and that Progress Indicator ends in 8 
> then the IOS gateway and CM must cut through audio immediately.  This 
> allows the user to hear any inband tones provided by the transit PSTN 
> gear or by the far end customer premise equipment.
>
> I am not aware of a single one-size-fits-all solution to this.  Some 
> services, such as American Express, send PI=8 to play prompts to 
> caller at the beginning of the call.  In this case it is necessary to 
> cut through the audio.  You may call other CPE equipment that provide 
> PI=8 but then fail to provide inband audio of either announcement or 
> ringback.
>
> That said there are a few tools at your disposal:
> http://www.cisco.com/en/US/tech/tk1077/technologies_tech_note09186a0080094c33.shtml
>
> /Wes
>
> On Wednesday, July 29, 2009 6:07:07 PM , Leslie Meade 
> <lmeade at signal.ca> <mailto:lmeade at signal.ca> wrote:
>
>  
>
> Since converting my gateways to H.323, I am getting users reporting 
> that sometimes they do not get a ring tone when they ring people.
>
> It is not every time, not every number. It can be long distance or 
> international, it does not happen all the time.  Any ideas
>
>  
>
> I am running ccm7.1 and my gateway is a 2821 H.323
>
>
> 4743212: *Jul 29 14:42:22.891 UTC: ISDN Se0/0/0:23 Q931: 
> pak_private_number: Invalid type/plan 0x0 0x0 may be overriden; sw-type 13
>
> 4743213: *Jul 29 14:42:22.891 UTC: ISDN Se0/0/0:23 Q931: 
> pak_private_number: Invalid type/plan 0x0 0x0 may be overriden; sw-type 13
>
> 4743214: *Jul 29 14:42:22.891 UTC: ISDN Se0/0/0:23 Q931: Sending 
> SETUP  callref = 0x5AF1 callID = 0xDBB7 switch = primary-ni interface 
> = User
>
> 4743215: *Jul 29 14:42:22.895 UTC: ISDN Se0/0/0:23 Q931: TX -> SETUP 
> pd = 8  callref = 0x5AF1
>
>         Bearer Capability i = 0x8090A2
>
>                 Standard = CCITT
>
>                 Transfer Capability = Speech 
>
>                 Transfer Mode = Circuit
>
>                 Transfer Rate = 64 kbit/s
>
>         Channel ID i = 0xA9838B
>
>                 Exclusive, Channel 11
>
>         Facility i = 
> 0x9F8B0100A11502012E020100800D4B72797374792057696465656E
>
>                 Protocol Profile =  Networking Extensions
>
>                 0xA11502012E020100800D4B72797374792057696465656E
>
>                 Component = Invoke component
>
>                         Invoke Id = 46
>
>                         Operation = CallingName
>
>                                 Name Presentation Allowed Extended
>
>                                 Name = Krysty
>
>         Display i = 'Krysty'
>
>         Calling Party Number i = 0x2181, '604899XXXX'
>
>                 Plan:ISDN, Type:National
>
>         Called Party Number i = 0x80, '01152818421XXXX'
>
>                 Plan:Unknown, Type:Unknown
>
> 4743216: *Jul 29 14:42:22.931 UTC: ISDN Se0/0/0:23 Q931: RX <- STATUS 
> pd = 8  callref = 0xDAF1
>
>         Cause i = 0x80E328 - Information element not implemented
>
>  
>
> Leslie
>
>  
>
>  
> ------------------------------------------------------------------------
>
>
>   
>  
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