[asterisk-users] Call audio leaking between calls

[Ryan M. Colbert]

I agree with the cross talk analysis. My suggestion would be to focus your efforts on the analog trunks/stations, not SIP. Are you using twisted pair or shielded cables for your analog runs?  If not, you might consider changing the cables or at least increasing the physical distance between them - in my experience this is the most common cause for cross talk.


-----Original Message-----
From: asterisk-users-bounces at lists.digium.com [mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of Ishfaq Malik
Sent: Tuesday, November 10, 2009 7:47 AM
To: Asterisk Users Mailing List - Non-Commercial Discussion
Subject: Re: [asterisk-users] Call audio leaking between calls


Doug Lytle wrote:
> Ishfaq Malik wrote:
>
>>>      Has anyone ever had experience of phones on the same office network
>>>      being able to hear other concurrent call's audio whilst on calls of
>>>
>>>
>
> It's called cross talk and yes, we've experienced it.
>
> But, it will only happen on an analog network (PSTN).  At that point,
> the provider had to check the analog lines.  It eventually was fixed.
>
> In a purely SIP environment, you shouldn't see this.
>
> Doug
>
>
This is what I'm thinking too and it's a weird one to try to pin down,
especially as I've currently got very little information. I think I'm
going to use Monitor on all their calls and see if the recordings show
any signs of this cross talk but even if they do it still doesn't help
to resolve the issue.

You'd think it would be an impossibility due to the nature of IP traffic.

Ish

--

Ishfaq Malik
Software Developer
PackNet Ltd

Office:   0161 660 3062

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