Central exchange | 36 |
Central office area | 25 |
Circuit group telephone network cross-patching factor | 67 |
Circuit group telephone network traffic capacity | 68 |
Closed telephone numbering system | 246 |
Coin box set | 321 |
Combined application system | 153 |
Common channel signalling | 269 |
Common channel signalling network | 276 |
Communication path | 5 |
Conditional selection | 139 |
Connecting path | 120 |
Continuous hunting | 134 |
Continuous hunting contacts | 138 |
Cross switching | 146 |
Crossbar entity | 54 |
Crossbar exchange | 54 |
Decade step-by-step entity | 53 |
Decade step-by-step exchange | 53 |
Delayed telephone call | 174 |
Delayed telephone call service more than fixed time probability | 213 |
Determinant telephone call flow | 178 |
Dial | 327 |
Dial-tone delay | 220 |
Dialling-time | 221 |
Digital automatic exchange | 30 |
Digital telephone network | 12 |
Direct full-available line connection | 83 |
Direct full-available trunk circuit connection | 83 |
Direct-action selector | 127 |
Electromechanical selector | 125 |
Electronic entity | 56 |
Electronic exchange | 56 |
Electronic switching | 144 |
Exuberant telephone traffic | 234 |
Fast application service | 152 |
First telephone call | 175 |
Fixed telephone call flow | 180 |
Fixed telephone call flow intensity | 191 |
Follow me | 157 |
Frequency signalling | 272 |
Full-available telephone network circuit group | 65 |
Gravity factor | 243 |
Group selection | 136 |
Handset | 349 |
Hot line | 158 |
Immediate application service | 151 |
Incoming information switching entity | 45 |
Intermediate line | 118 |
Interzone code | 256 |
Interzone exchange network | 18 |
Interzone index | 250 |
Intraoffice telephone traffic | 236 |
Junction area | 26 |
Limited-available telephone network circuit group | 66 |
Linear selection | 137 |