... standards, 19 G. 711 CODEC, 87–88, 89, 17 1G.723 CODEC, 17 1G.726 CODEC, 17 1G.728 CODEC, 17 1G.729 CODEC, 17 1G.729a CODEC, 87–88, 89, 17 1G.729ab CODEC, 17 1G.729b CODEC, 17 1gatekeeper case study, 15 8 16 5dial ... between, 14 8 15 1zone bandwidth configuration, 16 0 16 1zone subnet configuration, 15 9 16 0 10 9 _AVVID_ DI_index 10 /10 / 01 3 :19 PM Page 492478 Indexoptimal location of, 14 1overview of, 13 2 13 3redundancy ... meshed designs, 416 – 418 multicasting and, 426–427multiple CallManager clusters and, 10 6, 11 4 11 5 10 9 _AVVID_ DI_index 10 /10 / 01 3 :19 PM Page 4 91 492 Indexpartially meshed designs, 418 – 419 Unity messaging...