[asterisk-users] [Fwd: Internal LAN echo problem]

[Jason Parker]

See response in-random-lined.

David Gomillion wrote:
> 
> 
> On 10/24/07, *David Gomillion* <david.gomillion at gmail.com
> <mailto:david.gomillion at gmail.com>> wrote:
> 
>     On 10/24/07, *Steve Totaro* <stotaro at first-notification.com
>     <mailto:stotaro at first-notification.com>> wrote:
> 
>         Let me screw this thread up by top posting now.
> 
>         Could echo be caused by late packets if jitterbuffer is on or
>         something
>         or would that just cause lag?
> 
>         Thanks,
>         Steve
> 
> 
> 
>     So, does this qualify as an in-line reply, or a top post? Maybe it's
>     a medium post ;)
> 
>     If both calls were in the LAN, chances are good that the phones will
>     have re-invited to go around the SIP server. If that's the case,
>     then it shouldn't be a problem.
> 
>     Now, if dial options, recording, or SIP settings prevent reinvites,
>     then this might be part of the problem. 
> 
> 
> 
> Sorry, I need to clarify my own post. By part of the problem, I mean
> magnifying the effect. The real problem is the handset leaking, probably
> too much sidetone.
> 
> Anyway, the more the delay, the more noticeable this echo will usually be.
> 
>         kevin bergner wrote:
>         > On 10/24/07, Eric ManxPower Wieling < eric at fnords.org
>         <mailto:eric at fnords.org>> wrote:
>         >
>         >> Jonn Taylor wrote:
>         >>
>         >>> Eric "ManxPower" Wieling wrote:
>         >>>
>         >>>> Any echo you hear on pure IP calls is caused by the endpoint
>         phone.  You
>         >>>> cannot do ANYTHING about it on Asterisk.
>         >>>>
>         >>>>
>         >>>> Jonn Taylor wrote:
>         >>>>
>         >>>>
>         >>>>> Any ideas ?????
>         >>>>>
>         >>>>> Jonn
>         >>>>>
>         >>>>> -------- Original Message --------
>         >>>>> Subject:    [asterisk-users] Internal LAN echo problem
>         >>>>> Date:       Wed, 24 Oct 2007 08:34:32 -0500
>         >>>>> From:       Jonn R Taylor <jonnt at taylortelephone.com
>         <mailto:jonnt at taylortelephone.com>>


Will the madness never end?


>         >>>>> Reply-To:   Asterisk Users Mailing List - Non-Commercial
>         Discussion
>         >>>>> <asterisk-users at lists.digium.com
>         <mailto:asterisk-users at lists.digium.com>>
>         >>>>> To:         Asterisk Users Mailing List - Non-Commercial
>         Discussion
>         >>>>> < asterisk-users at lists.digium.com
>         <mailto:asterisk-users at lists.digium.com>>
>         >>>>>
>         >>>>>
>         >>>>>
>         >>>>> Hi all,
>         >>>>>
>         >>>>> I have an internal echo problem on my LAN only. I replaced
>         the LAN
>         >>>>> switch with a new linksys 2024 with QOS and seemed to help
>         but not fix
>         >>>>> the problem. Any ideas? Here in my setup - Dell PE6400 Dual
>         700,
>         >>>>> Asterisk 1.2.24 /FreePBX, 2-NIC cards, one with a public ip
>         and one with
>         >>>>> an internal ip, one PAP2, one SPA3102 and 2 BT101. I know
>         that bt's are
>         >>>>> cheap that are known for echo problem in the handset. I
>         have one remote
>         >>>>> user that never has a problem. I have a remote test server
>         at home
>         >>>>> connect via IAX with no problems, also a PAP2 with no
>         problem. External
>         >>>>> faxing from the rest of the world via our voip provider is
>         working
>         >>>>> great. One strange thing that I noticed is that we can not
>         fax to our
>         >>>>> iaxmodem, ATA ---> iaxmodem, but works perfect ATA --->
>         rx_fax. Not sure
>         >>>>> why either.
>         >>>>>
>         >>> That does not make sense. I can any one of these ata's or
>         phones and
>         >>> connect them to the public ip side and they work fine.
>         >>>
>         >> It can make sense or not make sense, but you cannot have echo
>         on a pure
>         >> VoIP call unless the endpoints introduce it.
>         >>
>         >>
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>         >>
>         >>
>         >
>         > i have seen this when the  headset volume is too high and simply
>         > lowering the volume addressed the problem
>         >
>         > as others have said an echo is simply not possible
>         >
>         >
>         >
> 
> 
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-- 
Jason Parker
Digium