This series of documents defines an architecture model and set of specifications for a Converged Access Network (CAN) that can support real time services such as VoIP, Video Telephony, voice and video streaming, etc. The proposed architecture supports multiple access technologies including the Ultra Mobile Braodband™ (UMB™)1 air interface [12]. This revision of the CAN series of documents provides the following capability:

• Support for UMB air interface only.
• Support for simple IPv4, simple IPv6 [13], Client Mobile IPv4 (CMIP4), and Proxy Mobile IPv4 (PMIP4). RADIUS authentication and authorization support for these protocols is specified. Diameter authentication and authorization support for simple IPv4 and simple IPv6 is specified.
• Support for QoS without SBBC is specified.
• RADIUS-based accounting is specified.