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<p><font face="Arial">Hello Steve, </font><br>
<font face="Arial">thanks for your anwer. </font><br>
<font face="Arial">Yes, you are right we want to do VoIP telephone system capable also of "public address" (overhead paging) service.</font><br>
<font face="Arial">So synchronization is a key issue if we want to avoid unpleasant effects.</font><br>
<font face="Arial">We are designing our phones and they will have also onboard amplifiers. </font><br>
<font face="Arial">What I am trying to understand is whether we may use the phone system also for this service or if it is better </font><br>
<font face="Arial">to go for a specific streaming technology (Ices2 is a good suggestion thanks).</font><br>
<br>
<font face="Arial">What happen if I put all the phones in a ring? Do they join the same multicast stream or a single stream for</font><br>
<font face="Arial">each phone will be created? </font><br>
<br>
<font face="Arial">Thanks again.</font><br>
<font face="Arial">Stefano</font><br>
<br>
<br>
<img src="cid:10__=4EBBF801DFA47A578f9e8a93@test.alstom.com" width="16" height="16" alt="Inactive hide details for Steve Totaro <stevetotaro@hotmail.com>">Steve Totaro <stevetotaro@hotmail.com><br>
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<ul><b><font size="2">Steve Totaro <stevetotaro@hotmail.com></font></b><br>
<font size="2">Inviato da: asterisk-users-bounces@lists.digium.com</font>
<p><br>
<font size="2">Phone: <br>
01/03/2007 18.33</font><br>
<font size="2">Per favore, rispondere a Asterisk Users Mailing List - Non-Commercial Discussion </font></ul>
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<font size="1" face="Arial"> </font><br>
<font size="2"> Per: </font><font size="2">Asterisk Users Mailing List - Non-Commercial Discussion <asterisk-users@lists.digium.com></font><br>
<font size="2"> Cc: </font><font size="2">(ccr: Stefano TOTARO/ITVRN01/Transport/ALSTOM)</font><br>
<font size="2"> Oggetto: </font><font size="2">Re: [asterisk-users] Multiple simultaneous calls</font></td></tr>
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<font face="Courier New">stefano.totaro@transport.alstom.com wrote:<br>
><br>
> Hi Guys,<br>
> I am a novice of Asterisk and I need some experts help to understand <br>
> what I can get out of it.<br>
> I need to make multiple calls (let say 50) at once to autoanswering <br>
> softphones on a LAN and send all of them the same message that they <br>
> will repeat with loudspeakers in the same environment.<br>
> I am a little concerned about synchronization of the phones and <br>
> moreover it is not much clear to me if I have to open 50 connections <br>
> and send 50 times the same packets or if can use in some way the <br>
> multicast.<br>
> Is there anybody that may give me some idea.<br>
> Thanks in advance,<br>
> Stefano<br>
><br>
I suppose you could do that although, I am unclear on the auto-answering <br>
softphone and the loudspeaker thing. Is this just for overhead paging <br>
or something?<br>
<br>
You could put all the phones in a ring group with ringall and use the <br>
computer's sound card to connect to an amplified speaker setup. <br>
<br>
You could also look at ices2 to stream audio or some other streaming <br>
technology.<br>
<br>
Thanks,<br>
Steve<br>
<br>
<br>
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