11New in this releaseThis chapter describes what is new in the IP Phone 1535 Phase 2.New FeaturesThis section describes the new attributes and features of the IP Phone1535 Phase 2.New Telephone AttributesThe IP Phone 1535 includes the following key attributes:• Video Enhancements— Video Fast Update (VFU) support— RFC 3934 (Packetization-mode=0)— Interoperability with TANDBERG Video systems• Universal Power Supply• Communications servers support, including:— Aligning with other Nortel SIP clients– STUN support for NAT/Firewall traversal– SIP Username Registration– 301, 302 Registration re-direct– Picture Caller ID support– Standard Ring Patterns– Enhanced DISPLAY NAME support (for Caller ID and Call Logs)– Server hosted (MAS based) conference— Improved Security and Services– DHCP with Option 66 (FTP server IP Address)– Auto configurationNortel Communications ServersNortel IP Phone 1535 New in this ReleaseNN43160-400 01.03 StandardRelease 4.0/SN010 27 November 2007Copyright © 2007, Nortel Networks.