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

[Jonn Taylor]

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.
>>     
>
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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.

Jonn