Cisco dials SIP in VoIP U-turn
"... Cisco also is opening up its IP call control products to an outside developer community by adding native support for SIP (Session Initiation Protocol) and SIMPLE (SIP for Instant Messaging and Presence Leveraging Extensions). The company will verify that third-party applications and client devices work with Cisco's SIP-compliant products, though not Cisco's pre-standard extensions to the standard..."
http://www.techworld.com/networking/news/index.cfm?NewsID=5505
Note: It seems like Cisco may become a VoIP system which plays nicely in the sand box with others. I personally feel this is an extremely positive move and eliminated my largest complaint about Cisco VoIP systems. -Eric