Index[SYMBOL] [A] [B] [C] [D] [E] [F] [G] [H] [I] [J] [K] [L] [M] [N] [O] [P] [Q] [R] [S] [T] [U] [V] [W] [X] H.323 gateway protocol call types component gatekeepers terminals Hard QoS hardware queues [See also queuing] HDB3 (High Density Binary 3) header compression High Density Binary 3 (HDB3) home use of VoIP HSRP (Hot Standby Router Protocol) 2nd HTML (Hypertext Markup Language) hybrid phone switches |