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

[Steve Totaro]

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

kevin bergner wrote:
> On 10/24/07, Eric ManxPower Wieling <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>
>>>>> Reply-To:   Asterisk Users Mailing List - Non-Commercial Discussion
>>>>> <asterisk-users at lists.digium.com>
>>>>> To:         Asterisk Users Mailing List - Non-Commercial Discussion
>>>>> <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
>
>
>