Linked by David Adams on Wed 2nd Jul 2008 18:49 UTC, submitted by Kushal Sharma
Building Telephony Systems with OpenSER is a new book from Packt, which acts as a step-by-step guide to building a high performance Telephony System. Written by Flavio E. Goncalves, this book teaches users how to develop a fast and flexible SIP server using OpenSER, an open-source VoIP server based on the Session Initiation Protocol (SIP), an application-layer control (or signaling) protocol for creating, modifying, and terminating sessions with one or more participants, including internet telephone calls, multimedia distribution, and multimedia conferences. This book is a well illustrated, step-by-step guide to building a SIP based network using OpenSER.
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Member since:
2007-05-17
Let me be the first one to say this:
FreeSWITCH ROCKS!
Much better than Asterisk, it's SIP stack is 100% RFC compliant and complete... it does STUN, TCP/UDP, SRTP, etc, they use the Sofia SIP stack.
Nokia also uses Sofia SIP, another great thing about FreeSWITCH is that it uses PCRE for regular expressions, it has event sockets, it's a soft-switch so it can scale from a PBX to a soft-switch, etc.
It also has YAML support for writing dialplans now, the rest is XML, etc.
I highly recommend FreeSWITCH to anyone that is interested in VoIP and telecommunications.
http://freeswitch.org/
FreeSWITCH vs Asterisk
http://freeswitch.org/node/117
It's the Apache of VoIP =D