Can someone suggest any other h323 protocol that could<br>use with asterisk instead of oh323?<br><br>I had similar problem with oh323 and each time it happens the asterisk will stop at a call going above 30 simultaneus calls
<br><br>However, I read from voip-info and which give oh323 some ratings to oh323.<br><br>I used A104D sangoma card with chan_ss7 and no echo.<br><br>goksie<br><br><div><span class="gmail_quote">On 4/28/06, <b class="gmail_sendername">
Anton</b> <<a href="mailto:anton.vazir@gmail.com">anton.vazir@gmail.com</a>> wrote:</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
Dear Jacob,<br><br>Any chance to give us any timing approximation for a next<br>version?<br><br>Regards,<br>Anton.<br><br>On 28 April 2006 17:26, Jacob Tinning wrote:<br>> On Tue, 18 Apr 2006, leonimar cape wrote:<br>> > Can someone give a suggestion on what I should do to
<br>> > omit the echo. Here is may scenario<br>> ><br>> > --- h323 --- chan-ss7 ---<br>> > A---| |--------| |--------------| |----B<br>> > --- --- ---
<br>> > Nextone Asterisk DMS<br>><br>> The next version of chan_ss7 will include<br>> enabling/disabling of the zaptel echo-canceller, which<br>> probably will solve your problem.<br>><br>
> > The calling party can hear every words he/she say<br>> > after 1 to 2 seconds. But the called party can hear A<br>> > with no echo and the quality is clear. I have already<br>> > tried it in both digium (TE410P) and sangoma card
<br>> > (AT104) and the results where the same. Is there any<br>> > way that I can cancel the echo? Any particular<br>> > settings that I have to change in the settings of the<br>> > asterisk?<br>>
<br>> The current version of chan_ss7 does not do anything to<br>> avoid echo. It just passes the audio through the<br>> channels.<br>><br>> The problem is when A calls an old analog phone B. Old<br>> analog phones typically bleed some of the audio back to
<br>> the sender.<br>><br>> Ordinary synchronous telephone-networks doesn't delay the<br>> audio very much ( < 10ms) so the caller will not notice<br>> any echo.<br>><br>> Unfortunately, ip-networks induce more delay ( > 70 ms )
<br>> which will clearly sound as echo.<br>><br>> To avoid the echo, the only (as far as I know) solution<br>> is to insert some kind of echo-canceller "in" or "to the<br>> right" of Asterisk in your drawing.
<br>><br>> As noted above, the next version of chan_ss7 will start<br>> the zaptel echo-cancellation when a new call is made<br>> (this is configurable, if you don't want<br>> echo-cancellation), and stop it again when the call is
<br>> finished.<br>><br>> Mvh. Jacob<br>_______________________________________________<br>--Bandwidth and Colocation provided by <a href="http://Easynews.com">Easynews.com</a> --<br><br>asterisk-ss7 mailing list
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