[Freeswitch-users] Does I need jitter buffer

[Anthony Minessale]

The analog phones are a common cause of echo.  Look for settings on the
device to use an echo canceler.


On Tue, Dec 6, 2011 at 8:58 PM, Boris Kovalenko <boris at tagnet.ru> wrote:

>  Hello!
>
>     We are not using headsets and speaker phones. Only standard analog
> phones connected via Linksys or Audiocodes devices. I have tested LG,
> Nortel, Samsung, Panasonic phones with same result. The problem exists only
> _inside_ my network. So, for example:
>
> Audiocodes -- FreeSwitch -- Linksys  ... echo present (often)
> Linksys -- FreeSwitch -- Linksys echo present (rarely)
> Audiocodes / Linksys -- Freeswitch -- Cisco 5350 -- PSTN (echo never
> present)
> Audiocodes / Linksys -- FreeSwitch -- remote calling party over internet
> (echo never present)
>
>
>
>
> Headsets, speaker phones, calling a remote party over high latency.
>
> On Tue, Dec 6, 2011 at 8:49 PM, Boris Kovalenko <boris at tagnet.ru> wrote:
>
>> Hello!
>>
>>     I have tested many phone models with same result. So my VOIP isn't
>> properly functioning? Jeff, may You tell me what should I double check
>> to eliminate echo?
>>
>> > Its not possible to have echo in a pure VOIP (properly functioning)
>> > implementation. The only source of echo would be from acoustic echo on
>> your
>> > phones which is most likely what you are experiencing. A Jitter buffer
>> wont
>> > help this problem.
>> >
>> > --
>> > View this message in context:
>> http://freeswitch-users.2379917.n2.nabble.com/Does-I-need-jitter-buffer-tp7065665p7067246.html
>> > Sent from the freeswitch-users mailing list archive at Nabble.com.
>> >
>> >
>> _________________________________________________________________________
>> > Professional FreeSWITCH Consulting Services:
>> > consulting at freeswitch.org
>> > http://www.freeswitchsolutions.com
>> >
>> > 
>> > 
>> >
>> > Official FreeSWITCH Sites
>> > http://www.freeswitch.org
>> > http://wiki.freeswitch.org
>> > http://www.cluecon.com
>> >
>> > FreeSWITCH-users mailing list
>> > FreeSWITCH-users at lists.freeswitch.org
>> > http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
>> > UNSUBSCRIBE:
>> http://lists.freeswitch.org/mailman/options/freeswitch-users
>> > http://www.freeswitch.org
>>
>>
>>  --
>> Regards,
>> Boris
>>
>>
>>
>> _________________________________________________________________________
>> Professional FreeSWITCH Consulting Services:
>> consulting at freeswitch.org
>> http://www.freeswitchsolutions.com
>>
>> 
>> 
>>
>> Official FreeSWITCH Sites
>> http://www.freeswitch.org
>> http://wiki.freeswitch.org
>> http://www.cluecon.com
>>
>> FreeSWITCH-users mailing list
>> FreeSWITCH-users at lists.freeswitch.org
>> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
>> UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users
>> http://www.freeswitch.org
>>
>
>
>
>  --
> Anthony Minessale II
>
> FreeSWITCH http://www.freeswitch.org/
> ClueCon http://www.cluecon.com/
> Twitter: http://twitter.com/FreeSWITCH_wire
>
> AIM: anthm
> MSN:anthony_minessale at hotmail.com
> GTALK/JABBER/PAYPAL:anthony.minessale at gmail.com
> IRC: irc.freenode.net #freeswitch
>
> FreeSWITCH Developer Conference
> sip:888 at conference.freeswitch.org
> googletalk:conf+888 at conference.freeswitch.org
> pstn:+19193869900
>
>
> _________________________________________________________________________
> Professional FreeSWITCH Consulting Services:consulting at freeswitch.orghttp://www.freeswitchsolutions.com
>
> FreeSWITCH-powered IP PBX: The CudaTel Communication Server
>
> Official FreeSWITCH Siteshttp://www.freeswitch.orghttp://wiki.freeswitch.orghttp://www.cluecon.com
>
> FreeSWITCH-users mailing listFreeSWITCH-users at lists.freeswitch.orghttp://lists.freeswitch.org/mailman/listinfo/freeswitch-users
> UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-usershttp://www.freeswitch.org
>
>
>
> --
> Regards,
> Boris
>
>
>
> _________________________________________________________________________
> Professional FreeSWITCH Consulting Services:
> consulting at freeswitch.org
> http://www.freeswitchsolutions.com
>
> 
> 
>
> Official FreeSWITCH Sites
> http://www.freeswitch.org
> http://wiki.freeswitch.org
> http://www.cluecon.com
>
> FreeSWITCH-users mailing list
> FreeSWITCH-users at lists.freeswitch.org
> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
> UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users
> http://www.freeswitch.org
>
>


-- 
Anthony Minessale II

FreeSWITCH http://www.freeswitch.org/
ClueCon http://www.cluecon.com/
Twitter: http://twitter.com/FreeSWITCH_wire

AIM: anthm
MSN:anthony_minessale at hotmail.com
GTALK/JABBER/PAYPAL:anthony.minessale at gmail.com
IRC: irc.freenode.net #freeswitch

FreeSWITCH Developer Conference
sip:888 at conference.freeswitch.org
googletalk:conf+888 at conference.freeswitch.org
pstn:+19193869900
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.freeswitch.org/pipermail/freeswitch-users/attachments/20111207/d4163b71/attachment-0001.html