I found two implementations of SIP2.0 on uClinux distribution,one is libosip2(library) and ser(SIP Express Router). My requirement is SIP gateway to route VoIP calls to different communication lines like PSTN, ISDN, ethernet, etc. Which implementation of SIP 2.0 fits my requirement? Are there any other open source SIP implementations which runs on Blackfin uClinux?
Please provide me some info on this?