This repository is not currently maintained. The FreeSWITCH project hosts a currently maintained version of this library at https://github.com/freeswitch/sofia-sip About Sofia-SIP Sofia-SIP is an open-source SIP User-Agent library, compliant with the IETF RFC3261 specification (see the feature table). It can be used as a building block for SIP client software for uses such as VoIP, IM, and many ot