Asterisk Users, In my setup, I have a T1 service with McleodUSA and I am using the SIP protocol. I am considering switching back to analog lines because quality of service outweighs the cost savings at my work.
Any good SIP providers out there? >From: "Baji Panchumarti" <[EMAIL PROTECTED]> >Reply-To: [EMAIL PROTECTED],Asterisk Users Mailing List - >Non-Commercial Discussion<[email protected]> >To: [email protected] >Subject: Re: [asterisk-users] Teliax Quality of Service >Date: Thu, 2 Aug 2007 16:40:27 -0400 > > On 8/2/07, John Meksavan wrote: > > > Asterisk Users, > > > > I recently ran into some problems with the quality of service with >Teliax. > > This occurred on August 1, 2007 with a dropped outbound call, audio > > quality isse on the callee side- not hearing me well on callee side, and > > sending DTMF tones (configured for RFC2833). Am I the only Teliax > > customer having this problem? > > ditto here this week, random breaks in audio, garbled voice etc. > > My softphones dialing in from outside had no audio issues. Others > on teliax forums suggested I switch to SIP since iax2 is aggressively > evolving and teliax equipment is experiencing some incompatibilities > with recent * iax releases. > > I changed codecs from gsm to ulaw, voice quality improved but same > random breaks. > > > It seems like when I am ready to go live with my Asterisk PBX System, I > > run into quality of service issues with the SIP provider. > > Consider having some fall back options from alternate providers since > it doesn't cost a whole lot to keep an active account. > > > Who should I go with that would guarantee me quality service just like > > an analog line? > > I have heard that there is no such thing unless your provider & you have > a dedicated, or at least highly reliable, circuit between the two of you >: > > http://en.wikipedia.org/wiki/User_Datagram_Protocol > > "UDP does not guarantee reliability or ordering in the way that TCP >does. > Datagrams may arrive out of order, appear duplicated, or go missing > without notice. Avoiding the overhead of checking whether every > packet actually arrived makes UDP faster and more efficient, at least > for applications that do not need guaranteed delivery. Time-sensitive > applications often use UDP because dropped packets are preferable > to delayed packets..." > > One of the reasons Time Warner, Armstrong, Cox and other cable > broadband guys are able to offer fairly reliable voip service is that > they control the pipes between their VoIP proxies and their end > users. > > It is also the reason vonage, teliax and other 3rd party vendors > have more issues. I used broadvox a few years ago, if the callee > answered before the caller had heard a ring the line went dead :-) > > -baji. > >-- > >_______________________________________________ >--Bandwidth and Colocation Provided by http://www.api-digital.com-- > >asterisk-users mailing list >To UNSUBSCRIBE or update options visit: > http://lists.digium.com/mailman/listinfo/asterisk-users _________________________________________________________________ Tease your brain--play Clink! Win cool prizes! http://club.live.com/clink.aspx?icid=clink_hotmailtextlink2 _______________________________________________ --Bandwidth and Colocation Provided by http://www.api-digital.com-- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
