Telephone network signal transmitting signal code | 267 |
Telephone network signalling associated channel | 274 |
Telephone network signalling common channel | 275 |
Telephone network signalling system | 259 |
Telephone network simple transposed line connection | 91 |
Telephone network slipped full-available line connection | 84 |
Telephone network slipped limited-available line connection | 89 |
Telephone network step limited-available line connection | 85 |
Telephone network trunk connecting line | 59 |
Telephone network trunk index | 251 |
Telephone network trunk-record junction circuit | 60 |
Telephone network uniform limited-available line connection | 86 |
Telephone numbering system | 245 |
Telephone rest | 167 |
Telephone seizure | 215 |
Telephone seizure time | 217 |
Telephone set. | 301 |
Telephone time loss | 199 |
Telephone traffic | 225 |
Telephone traffic intensity | 227 |
Telephone traffic load factor | 240 |
Telephone traffic loss | 198 |
Telephone traffic source | 229 |
Telephone traffic source group | 230 |
Telephony | 3 |
Terminal exchange | 38 |
Time switching | 143 |
Time dividing channel | 7 |
Time switching unit | 104 |
Tone ringer | 325 |
Transit telephone traffic | 239 |
Trunk code | 257 |
Trunk coin box set | 322 |
Trunk exchange | 31 |
Trunk incoming information switching entity | 46 |
Trunk offering | 163 |
Trunk telephone network | 15 |
Trunk telephone network customer number | 255 |
Uniform gravitation | 242 |
Unit telephone traffic | 235 |
Variable transfer | 165 |
Videophone | 317 |
Wake-up service | 164 |
Zone telephone network | 16 |
Zone telephone network customer number | 254 |