... processing, 41 2 42 2enterprise dial plans, 40 7 40 9, 41 3 41 4 IP network design for multicasting, 42 2 42 7 IP/ TV device selection, 42 9 IP/ TV with branch offices, 42 7 42 8See also multisite AVVID solutionsEthernet ... 261distributed IP telephony call processing, 41 2 42 2CallManager design and, 41 2 41 6disaster recovery and, 41 5 41 6LAN issues for CallManager clusters, 41 9 42 0migrating to from centralized system, 41 4 41 5spreading ... 40 , 212–2 14, 365–368Voice over Frame Relay (VoFR), 266Voice over IP (VoIP) AVVID solutions,336–3 84 Cisco equipment needed for, 340 – 341 connecting single site back to other sites, 344 – 346 connecting...