Hmmm, remember though that G.711u/a sends 64Kbit Frames, however it is not actually 64Kbit/call... We're not doing Circuit-switching here, we're doing packet switching. If you figure on IP overhead as well as the RTP information and of course SIP messages, then you add the 64Kbit of G.711u/a Payload you get around 80Kbit/sec Per user... that means on a Full T1 you only get 19 simultaneous calls, not 24... and on an E1 you would get around 25 simultaneous calls, not 32...
And that's assuming that you have a very good SLA (or european equivalent) and that your latency is VERY low... I hope to god you use QoS on your router or your calls will sound like absolute crap... It's totally possible, don't be scared off by what I said, I'm even using * on a cable connection at home and it works just fine, you just need to do some preparation, it's a big change especially for the end users of the system... -Chris ----- Original Message ----- From: "brian" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Monday, July 19, 2004 11:44 AM Subject: RE: [Asterisk-Users] Codecs - Advantages > If you have the bandwidth then use ulaw :) > > bkw > > > -----Original Message----- > > From: [EMAIL PROTECTED] [mailto:asterisk-users- > > [EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED] > > Sent: Monday, July 19, 2004 12:44 PM > > To: [EMAIL PROTECTED] > > Subject: [Asterisk-Users] Codecs - Advantages > > > > Hi, > > I'm planning to use a Asterisk with Digium E1 cards, I understand that > > using a codec such as G.729 can be very CPU demanding. What are the real > > advantages of using a codec such as G.729 ? Bandwidth only ? Using no > > compression wouldn't increase the scalability of my asterisk PBX ? This is > > considering I have no bandwidth issues in my network. > > > > Thanks > > __________________________________________________ > > > > Todav�a no ten�s tu Ciudad Internet Mail? Obtenelo ahora! - > > http://webmail.ciudad.com.ar > > > > Descarg� Gratis el nuevo Internet Explorer 6.0, el mejor software para > > actualizar tu PC. > > http://www.ciudad.com.ar/ar/servicios/ie/ > > > > _______________________________________________ > > Asterisk-Users mailing list > > [EMAIL PROTECTED] > > http://lists.digium.com/mailman/listinfo/asterisk-users > > To UNSUBSCRIBE or update options visit: > > http://lists.digium.com/mailman/listinfo/asterisk-users > > > _______________________________________________ > Asterisk-Users mailing list > [EMAIL PROTECTED] > http://lists.digium.com/mailman/listinfo/asterisk-users > To UNSUBSCRIBE or update options visit: > http://lists.digium.com/mailman/listinfo/asterisk-users _______________________________________________ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
