Nortel TFC002, Manual

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Engineering information Page 41 of 64
Centralized Attendant Service Description and engineering
Table 21
CAS attendant requirements
Average speed of answer
≤
2.00 seconds
CAS
attendants
needed
Attendant work time (AWT) in seconds
1–5 6–10 11–15 16–20 21–25 26–30 31–35 36–40 41–45 46–50 51–55 56–60
Attendant traffic (Ta) in CCS
1 10 5 4 3 2 2 1 1 1 1 1 1
2 38 29 24 21 19 17 16 15 14 14 13 12
3 70 57 51 46 43 40 38 37 35 34 33 32
4 103 88 80 74 70 67 64 62 60 58 56 55
5 136 120 110 104 99 95 91 89 86 84 82 81
6 170 153 142 134 129 124 120 117 114 112 110 108
7 205 186 174 166 159 154 150 146 143 140 138 136
8 240 219 206 197 190 185 180 176 173 170 167 165
9 274 253 239 230 222 216 211 207 203 200 197 194
10 309 287 272 262 254 248 243 238 234 230 227 224
11 344 321 306 295 287 280 274 269 265 261 258 255
12 380 355 340 328 319 312 306 301 297 293 289 286
13 415 390 373 362 352 345 339 333 328 324 320 317
14 450 424 407 395 385 378 371 365 360 356 352 348
15 485 459 441 429 419 411 404 398 393 388 384 380