[cisco-voip] Crosstalk or Merged VoIP calls

[Mike Neal]

We are running 12.4(9)T2 on the 3745's/3845's platforms and running
4.02CCM. We are in the process of upgrading to CCM
5.02. .

Mike


On 7/27/07, Voll, Scott <Scott.Voll at wesd.org> wrote:
>
>  We had a VGW that interconnected the PBX and CM.  running CM 4.1 and
> Unity 4.0.5 on both the PBX and the CM side of things.  I think DSP
> problem could very well be a possibility.  Have you upgraded?
>
>
>
> Scott
>
>
>  ------------------------------
>
> *From:* Mike Neal [mailto:routerguru1 at gmail.com]
> *Sent:* Friday, July 27, 2007 8:48 AM
> *To:* Voll, Scott
> *Cc:* cisco-voip at puck.nether.net
> *Subject:* Re: [cisco-voip] Crosstalk or Merged VoIP calls
>
>
>
> Nope, no QSig. Just standard North American PRI signaling here.
>
> What version CCM were you using?
>
> What were you using for voice mail?
>
> Where there voice gateways involved in your seni
>
>
>
> Our first thought was this was a typical DSP problem but how could a live
> conversation get re-routed from it's orginal router to our VM system and be
> merged in to an exsisting incoming VM call that is being left for a user.
> This one will go down in the history books as then one that stumped the
> world I think. I can only hope that someone out there has see this and can
> point me in the right direction.
>
>
>
> Thanks,
>
>
>
> On 7/27/07, *Voll, Scott* <Scott.Voll at wesd.org > wrote:
>
> I have seen this when we had our CM and old legacy PBX connected.  I
> always thought it was the PBX screwing something up……….  Are any of the
> Connections QSig?
>
>
>
> Scott
>
>
>  ------------------------------
>
> *From:* cisco-voip-bounces at puck.nether.net [mailto:
> cisco-voip-bounces at puck.nether.net] *On Behalf Of *Mike Neal
> *Sent:* Friday, July 27, 2007 8:16 AM
> *To:* cisco-voip at puck.nether.net
> *Subject:* [cisco-voip] Crosstalk or Merged VoIP calls
>
>
>
> Has anyone seen crosstalk or calls getting merged in a VoIP environment.
>
> We run a very large VoIP environment and have seen 3 cases of this.
>
>
>
> Case #1:
>
> Two routers in two different locations.
>
> Location 'A' has a user on an IP phone outbound to the PSTN.
>
> Location 'B' receives an inbound call that gets forward to our own
> voicemail system via a Cisco 7610 DPA.
>
> Our voicemails are delivered to our email the form of .WAV files.
>
> The .WAV file delivered to the user is of the conversation that location
> 'A' user is having.
>
> The .WAV file recorded a portion of their conversation.
>
> How is this possible? The two voice streams don't exist on the same
> routers. How could they and where could they have mixed.
>
>
>
> Case #2:
>
> One router in one location (that we know of..lol).
>
> User dials in and this time leaves me a voice mail. The voice mail I get
> is not what he left but of another live conversation of another party.
>
>
>
> The only common parties involved here are CCM 4.x cluster, Cisco DPA7610's
> and our voicemails system.
>
>
>
> Any help would be appreciated.
>
> Cisco is baffled as well.
>
>
>
> Thanks,
>
> Mike
>
>
>
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