I don't have a good answer to that except how it sounds - SIP is a good LP, IAX2 is a poorly copied MP3 file.
_____ From: asterisk-users-boun...@lists.digium.com [mailto:asterisk-users-boun...@lists.digium.com] On Behalf Of David Gibbons Sent: Tuesday, October 20, 2009 3:53 PM To: 'Asterisk Users Mailing List - Non-Commercial Discussion' Subject: Re: [asterisk-users] High Volume Call Center SIP versus IAX2 <snip> the IAX quality is at best 40-50% of a SIP connection. </snip> How is this calculated? Thanks Dave From: asterisk-users-boun...@lists.digium.com [mailto:asterisk-users-boun...@lists.digium.com] On Behalf Of Danny Nicholas Sent: Tuesday, October 20, 2009 4:46 PM To: 'Asterisk Users Mailing List - Non-Commercial Discussion' Subject: Re: [asterisk-users] High Volume Call Center SIP versus IAX2 Just my opinion - Call Centers should be SIP trunked because IAX is more prone to poor sound quality. IN MY SHOP (shouting to make the point that I'm not speaking for all Asterisk installations), the IAX quality is at best 40-50% of a SIP connection. _____ From: asterisk-users-boun...@lists.digium.com [mailto:asterisk-users-boun...@lists.digium.com] On Behalf Of Robert Grignon Sent: Tuesday, October 20, 2009 3:41 PM To: asterisk-users@lists.digium.com Subject: [asterisk-users] High Volume Call Center SIP versus IAX2 I wont say we are extremely high volume (40 concurrent calls) but I get occasional complaints about quality. Setup (at same location): Asterisk 1.4.26.2 FrontEnd Asterisk 1.4.26.2 Gateway with Sangoma A108D card with 2 PRI and LDT1 Connected via IAX2 trunking on its own VLAN Is IAX2 the way to go or would SIP trunking be better. I know its a pretty vague question but I am just trying to make sure I am approaching the setup correctly. Thanks
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