?<br>GSM is greate! there was a miss understood. <br>if you transcode more than 90 in a core 2 duo you get a bad audio <br>GSM to G729 or G711 to G729.<br><br>G711 to GSM is ok, but you should test it.<br><br><br><div class="gmail_quote">
2009/2/24 Alejandro Cabrera Obed <span dir="ltr"><<a href="mailto:aco1967@gmail.com">aco1967@gmail.com</a>></span><br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
Do you think GSM codec has poor audio quality ???<br>
<br>
Because I've made some tests among softphones connected from different<br>
cities of my country and the audio was good to me.<br>
<br>
Maybe GSM is a good choice.<br>
<div><div></div><div class="Wj3C7c"><br>
On Tue, Feb 24, 2009 at 11:16 PM, David fire <<a href="mailto:ddfire@gmail.com">ddfire@gmail.com</a>> wrote:<br>
> out there is a free for educational and no commercial G729 lib for asterisk<br>
> you can use it to test in a non-comercial system.<br>
> the digium lib is much better. if you have more than 30~60 phones<br>
> transcoding inst a very good idea.<br>
> i made my self a test on a core 2 duo 64 bits 2GB of ram a test transcoding<br>
> more than 90 calls the sound quality was BAD not poor BAD.<br>
><br>
> the digium transcoder is GREATE 0 cpu was gone for transcoding.<br>
><br>
> keep this in mind.<br>
><br>
> David<br>
><br>
> 2009/2/24 Kristian Kielhofner <<a href="mailto:kristian.kielhofner@gmail.com">kristian.kielhofner@gmail.com</a>><br>
>><br>
>> On Mon, Feb 23, 2009 at 6:59 PM, Alejandro Cabrera Obed<br>
>> <<a href="mailto:aco1967@gmail.com">aco1967@gmail.com</a>> wrote:<br>
>> > Dear all, I have Asterisk 1.4 with SIP. I have a voicemail implemented<br>
>> > with GSM sound files.<br>
>> ><br>
>> > The problem is I have IP phones Utopix HyperPhone 202 which support<br>
>> > only G.729a/u and G.723.1 high/low, but not GSM.<br>
>> ><br>
>> > If I choose G.729A the "pass-throu" calls among users are OK, but<br>
>> > Asterisk can't transcode GSM to G.729A in voicemail calls.<br>
>> ><br>
>> > My company doesn'y want to pay for a G.729 license, so I'm thinking to<br>
>> > buy new IP phones with GSM support, so I have no problem with the<br>
>> > voicemail system.<br>
>> ><br>
>> > Are the IP phone with GSM support a good choice for me ???<br>
>> ><br>
>> > (Maybe in the future I need to connect the Asterisk with the PSTN, GSM<br>
>> > doesn't matter at this point ???)<br>
>> ><br>
>> > Really thanks,<br>
>> ><br>
>> > Alejandro<br>
>> ><br>
>><br>
>> Install the G.729 sound files and make app_voicemail record messages<br>
>> (format=g729) in G729. As long as you don't need meetme or a few<br>
>> other apps that essentially require G.729 transcoding you don't need a<br>
>> license.<br>
>><br>
>> --<br>
>> Kristian Kielhofner<br>
>> <a href="http://blog.krisk.org" target="_blank">http://blog.krisk.org</a><br>
>> <a href="http://www.submityoursip.com" target="_blank">http://www.submityoursip.com</a><br>
>> <a href="http://www.astlinux.org" target="_blank">http://www.astlinux.org</a><br>
>> <a href="http://www.star2star.com" target="_blank">http://www.star2star.com</a><br>
>><br>
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><br>
><br>
><br>
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<br>
<br>
<br>
--<br>
Alejandro Cabrera Obed<br>
<a href="mailto:aco1967@gmail.com">aco1967@gmail.com</a><br>
</div></div><a href="http://www.alejandrocabrera.com.ar" target="_blank">www.alejandrocabrera.com.ar</a><br>
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