June 2005
Intermediate to advanced
502 pages
21h 48m
English
Content preview from Switching to VoIP
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Index | 473
synchronous optical network (SONET), 66,
450
syslog keyword, Asterisk, 244
System command, Asterisk, 386, 409
T
T carrier, 451
T extension, Asterisk, 392
t extension, Asterisk, 392
T1 circuit, 66, 276, 450
bandwidth of, 110
channelized or split-use, 277
compared to VoIP, 119
connecting PBXs by, 292
wireless T1, 79
T1 interfaces, Asterisk and, 415
T100P interface card, 40
T.120 protocol, 136
T1/PRI trunks, 266, 269
T3 circuit, 66, 276
T.30 protocol, 332
T.37 protocol, 332, 338
T.38 protocol, 339
TAFM (The Asterisk Fax Manager), 375
talk extension, Asterisk, 392
TCP (Transmission Control Protocol), 18
TCP/IP, as transport for VoIP
trunks, 295–300
TCP/IP network, 14
reliability of, 8
VoIP requiring, 7
(see also IP network; VoIP network)
TDD MODE command, AGI, 441
TDM equipment vendors, 380–381
TDM phones, 307
TDM (time division multiplexing), 74–76,
451
TDM400P interface card, 39, 40
TE400 Series interface card, 40
Telecommunications Standardization Sector
(ITU-T), 60
Telecommunications Systems Inc., 351
Telecontrol Corp., 351
telephone services, list of, xv
TELEPHONECOMP variable, Asterisk, 387
telephones (see IP phones; SIP phones;
traditional phones)
telephony, 1, 94
telephony functions (see applications)
telephony hardware vendors, 380–381
telephony service provider (see TSP)
telephony software, 36, 370–374 ...
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