Registering a client in the SIP model is not mandatory, a session can be initiated with a peer without requiring a lookup in the SIP directory. But why is this method so important and how does it work? This article explains what is a registration in the SIP world and how it works with Asterisk.
Continue reading »
Posted by: Alexandre Chauvin-Hameau, on 10/10/2007 | [DHCP, DNS, SBC, SIP, sip.conf, ToIP and trunk] | Trackback | Popularity: 47%
A PBX system on a Microsoft Windows operating system? Yes it is possible and 3CX with its Phone System is proposing such a solution. After some tests on the free edition, here is our analysis.
Continue reading »
Posted by: Alexandre Chauvin-Hameau, on 09/04/2007 | [centrex, product, SIP, ToIP and trunk] | Trackback | Popularity: 20%
Voice transport should always balance between real time and bandwidth consumption. When interconnecting two PBX in order to exchange more than one communication, it could be interesting to limit bandwidth consumption by carrying more voice samples in the same IP frame. This is what the Asterisk Inter Exchange protocol (aka IAX) is doing and gains are real.
Continue reading »
Posted by: Alexandre Chauvin-Hameau, on 07/30/2007 | [asterisk, IAX, QoS and trunk] | Trackback | Popularity: 22%