McDewey

C H A P T E R 73 Video Telephony • Video Telephony Overview, on page 859 • Video Telephony Support, on page 859 • Video Network, on page 863 • Video Telephony Configuration Task Flow, on page 865 • H.323 Video, on page 865 • Video Support, on page 870 • Video Features , on page 873 • QoS for Video Networks , on page 875 Video Telephony Overview Unified Communications Manager supports video telephony and thus unifies the world of voice and video calls. Video endpoints use Unified CM call-handling features and access a unified voice and video solution for dialing and connecting video calls. The Unified Communications Manager video telephony solution offers these features: • Supports video and video-related features, such as Far-End Camera Control (FECC) • Supports multiple logical channels that are needed to allow the transmission of video streams • Transmits midcall, media-related messages that are needed for video (that is, transmits commands or indications that are needed for video calls) • Supports H.323, Skinny Client Control Protocol (SCCP), and Session Initiation Protocol (SIP) • Enhances locations and regions to provide Bandwidth Management • Provides serviceability information, such as Call Detail Records (CDRs), about video calls Video Telephony Support The following sections discuss the details of video telephony in the Unified Communications Manager environment. Feature Configuration Guide for Cisco Unified Communications Manager, Release 15 and SUs 859