DoubAngo.org is an 3GPP IMS Framework
About DoubAngo.org
doubango is an experimental cross-platform, open source 3GPP NGN/IMS framework for embedded systems (it also works on Windows XP/Vista/7, Mac OS X and unix-like systems). It is fully written in C. The framework has been carefully designed to efficiently work on embedded systems with limited memory and low computing power and to be extremely portable.
The SIP/IMS stack (RFC 3261) implements 3GPP TS 24.229 Rel-9 and can be used to develop VoIP applications targeting embedded systems, desktop computers, laptops, tablet PCs or handheld PCs. You can also use the stack to develop IM clients (Both Page Mode and Session Mode) using SIMPLE protocol. Almost all SIP methods are supported (INVITE, SUBSCRIBE, PUBLISH, MESSAGE, REFER, UPDATE, INFO ...) and the stack could be easily extended to implement any missing or custom method. The Stack contains both MMTel and PoC extensions to allow developing rich multimedia applications. The transport layer offers possibilities to use UDP, TCP, TLS or SCTP protocols.
Key features: Digest AKAv1/AKAv2, IPSec, SigComp, MMTel, XCAP, PoC, MSRP, SIP/SDP, DNS SRV/NAPTR, DHCPv4/DHCPv6, TLS, SCTP, STUN, TURN, ICE, OMA SIMPLE IM, ... and many other features.
More information ==> http://www.doubango.org.
