Avaya announced a series of enhancements to its IP Telephony portfolio, including support for end-to-end, full-featured Session Initiation Protocol (SIP) delivered through the latest version of its telephony software -- Avaya Communication Manager 5.0.Avaya Communication Manager 5.0 now features embedded SIP, allowing co-residency on a single server (initially with the Avaya S8300C Server) -- eliminating the cost and management issues associated with multiple servers. New SIP trunk alternate routing -- a key capability for redistributing voice,...