ICS dhcp client/ server code. support Linux, bsd, .... Cross-platfrom, rich functionalities.

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 other real-time and person-to-pe