| [SYMBOL] [A] [B] [C] [D] [E] [F] [G] [H] [I] [J] [K] [L] [M] [N] [O] [P] [Q] [R] [S] [T] [U] [V] [W] T1 (trunk level 1) tandem switches TCP (Transmission Control Protocol) TCP/IP performance tuning 2nd TCP/IP protocol stack 2nd 3rd TCP UDP technology adoption process telephone calls stages of telephones telephony standards G.711 terminating SLA contracts test plan for VoIP deployment assembling 2nd 3rd testing QoS 2nd 3rd tie lines Time Stamp field (RTP header) toll bypass 2nd toll fraud 2nd topology mapping 2nd TOS TOS (Type Of Service) field IP packet header traffic congestion traffic classification 2nd 3rd prioritization traffic shapers training outsourcing training costs estimating transaction-oriented applications transcoding 2nd troubleshooting network problems outsourcing 2nd trunk lines TTL (Time To Live) field IP packet header tuning TCP/IP performance 2nd VoIP performance 2nd 3rd tuning network performance 2nd |