Martin Joseph wrote: > > On Jun 29, 2006, at 2:43 PM, T. Shaw wrote: > >> thanks for all the responses. I feared that it might be a bandwidth >> issue. We have a (supposedly) business DSL line that is 1.5M - 3M >> down/ 512k up. might have to bump that up to a higher grade. > > If you are actually getting what you describe above you should have no > need to upgrade in order to support 3 or 4 simultaneous calls... I > have only 384K bit's upstream on my home DSL and that's fine for 2 > uLaw calls. If you switch to GSM or G729 that should allow for even > greater simultaneous call volume... > Accorging to the calculator on asterisk-guru (which I know isn't perfect), you should be able to manage at least 30 calls with trunked IAX and G.729. >> >> I did take your suggestion and contact my VOIP provider. They >> suggested to two things: >> 1) Use SIP to trunk with them instead of IAX ( they said that lots of >> people complain about the conenction with IAX, but when they use SIP >> the issues get better) >> > ? This sounds like they have an issue. With (presumably) a different provider, I seem to be getting a similar
problem, at home (even with the same accounts) IAX-in and IAX-out causes no problems, with G.729, whereas on site IAX-in and IAX-out calls have clipping and buzzing, with same handsets, same codec only differences being that on site there is a timing source (TDM400) and the IAX channels are trunked. SIP-in doesn't seem to cause the same problems on-site. _______________________________________________ --Bandwidth and Colocation provided by Easynews.com -- Asterisk-Users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users