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    							DEFINITY Enterprise Communications Server Release 7 Basic Call 
    Management System (BCMS) Operations  555-230-706  Issue 2
    June 1999
    Use of BCMS Reports for ACD Planning 
    6-25 Engineering ACD Applications with Data Obtained from the BCMS Reports 
    6
    200 5694 5754 5800 5853 5883 5918 5937 5957 5967
    225 6436 6499 6547 6601 6632 6667 6686 6706 6717
    250 7178 7244 7294 7349 7381 7417 7436 7456 7467
    275 7921 7990 8041 8098 8130 8166 8186 8206 8217
    300 8665 8737 8789 8847 8880 8916 8936 8956 8967
    350 10154 10230 10285 10345 10379 10416 10435 10456 10467
    400 11645 11725 11782 11843 11878 11915 11935 11956 11967
    450 13137 13220 13279 13342 13377 13415 13435 13456 13466
    500 14630 14716 14776 14840 14876 14914 14935 14956 14966
    550 16124 16213 16274 16339 16375 16414 16434 16456 16466
    600 17618 17710 17773 17839 17875 17914 17934 17955 17966
    650 19113 19207 19271 19338 19374 19414 19434 19455 19466
    700 20609 20704 20769 20837 20874 20913 20934 20955 20966
    750 22105 22202 22268 22336 22374 22413 22434 22455 22466
    800 23601 23700 23767 23836 23873 23913 23934 23955 23966
    850 25097 25198 25266 25335 25373 25413 25434 25455 25466
    900 26594 26696 26765 26835 26873 26913 26934 26955 26966
    950 28091 28195 28264 28334 28372 28413 28434 28455 28466
    1000 29588 29693 29763 29834 29872 29913 29934 29955 29966
    Table 6-7. 120 Seconds Average Service Time  — Continued
    AVG SPEED ANS
    agents 11 15 22 30 45 60 90 120 180
    Continued on next page 
    						
    							DEFINITY Enterprise Communications Server Release 7 Basic Call 
    Management System (BCMS) Operations  555-230-706  Issue 2
    June 1999
    Use of BCMS Reports for ACD Planning 
    6-26 Engineering ACD Applications with Data Obtained from the BCMS Reports 
    6
    Table 6-8. 180 Seconds Average Service Time 
    AVG SPEED ANS
    agents 11 15 22 30 45 60 90 120 180
    1222233345
    2 111111121314161921
    3 222324252629313539
    4 353637394145485357
    5 495152555762667276
    6 646667717479849196
    7 798183879197102110115
    8 95 97 100 104 108 115 121 129 134
    9 111 113 116 122 126 134 140 148 154
    10 127 130 133 139 144 152 159 168 174
    12 160 164 168 175 180 190 197 207 213
    14 194 198 203 211 217 228 236 246 253
    16 228 233 239 247 255 266 274 285 292
    18 263 269 275 284 292 305 313 325 332
    20 298 304 311 322 330 343 353 364 372
    25 387 395 403 416 426 441 451 463 471
    30 478 487 497 511 523 539 549 563 571
    35 570 581 591 607 620 637 648 662 670
    40 662 674 686 704 717 736 747 762 770
    45 755 769 782 801 815 834 847 861 870
    50 849 864 878 898 913 933 946 961 970
    60 1038 1055 1071 1094 1110 1132 1145 1160 1169
    70 1228 1247 1265 1290 1307 1330 1344 1360 1369
    80 1419 1441 1460 1487 1505 1529 1543 1560 1569
    90 1612 1635 1656 1684 1703 1728 1743 1759 1769
    100 1804 1829 1852 1882 1902 1927 1942 1959 1968
    125 2289 2318 2343 2377 2399 2425 2441 2459 2468
    150 2776 2809 2837 2873 2896 2924 2940 2958 2968
    175 3264 3301 3331 3369 3394 3423 3440 3458 3468
    Continued on next page 
    						
    							DEFINITY Enterprise Communications Server Release 7 Basic Call 
    Management System (BCMS) Operations  555-230-706  Issue 2
    June 1999
    Use of BCMS Reports for ACD Planning 
    6-27 Engineering ACD Applications with Data Obtained from the BCMS Reports 
    6
    200 3755 3794 3826 3867 3892 3922 3939 3958 3968
    225 4246 4288 4322 4365 4391 4421 4439 4458 4468
    250 4738 4783 4819 4863 4890 4921 4938 4957 4967
    275 5231 5278 5316 5361 5388 5420 5438 5457 5467
    300 5724 5774 5813 5859 5887 5920 5938 5957 5967
    350 6713 6766 6808 6857 6886 6919 6937 6957 6967
    400 7703 7760 7804 7854 7885 7918 7937 7957 7967
    450 8694 8754 8800 8853 8883 8918 8937 8957 8967
    500 9686 9750 9797 9851 9882 9917 9936 9956 9967
    550 10680 10745 10795 10850 10882 10917 10936 10956 10967
    600 11673 11742 11792 11848 11881 11917 11936 11956 11967
    650 12668 12738 12790 12847 12880 12916 12936 12956 12967
    700 13662 13735 13788 13846 13880 13916 13936 13956 13967
    750 14657 14732 14786 14845 14879 14916 14935 14956 14967
    800 15653 15730 15785 15845 15879 15916 15935 15956 15967
    850 16649 16727 16783 16844 16878 16915 16935 16956 16967
    900 17645 17725 17782 17843 17878 17915 17935 17956 17967
    950 18641 18723 18780 18842 18877 18915 18935 18956 18966
    1000 19638 19721 19779 19842 19877 19915 19935 19956 19966
    Table 6-8. 180 Seconds Average Service Time  — Continued
    AVG SPEED ANS
    agents 11 15 22 30 45 60 90 120 180
    Continued on next page 
    						
    							DEFINITY Enterprise Communications Server Release 7 Basic Call 
    Management System (BCMS) Operations  555-230-706  Issue 2
    June 1999
    Use of BCMS Reports for ACD Planning 
    6-28 Engineering ACD Applications with Data Obtained from the BCMS Reports 
    6
    Table 6-9. 240 Seconds Average Service Time 
    AVG SPEED ANS
    agents 11 15 22 30 45 60 90 120 180
    1222222233
    28889910111214
    3 161717181920222427
    4 262727283032343740
    5 363738404144465154
    6 474849515357596468
    7 586061636669737882
    8 707173767883879297
    9 828385889196100107111
    10 94 96 98 101 104 110 114 121 126
    12 118 121 123 127 131 137 142 150 155
    14 143 146 149 154 158 165 171 179 185
    16 169 172 175 181 186 194 200 208 214
    18 195 198 202 208 213 222 229 238 244
    20 221 225 229 235 241 251 258 267 273
    25 287 292 297 305 312 323 331 341 348
    30 354 360 366 376 383 395 404 415 422
    35 422 429 436 447 456 469 478 490 497
    40 491 499 506 518 528 542 552 564 571
    45 561 569 577 590 601 616 626 638 646
    50 630 639 649 663 674 689 700 713 721
    60 771 781 792 808 820 837 849 862 870
    70 912 924 936 954 967 986 998 1012 1020
    80 1055 1068 1081 1101 1115 1134 1147 1161 1170
    90 1198 1213 1227 1248 1263 1283 1296 1311 1320
    100 1341 1358 1373 1395 1411 1432 1445 1461 1469
    125 1702 1722 1740 1765 1782 1805 1819 1835 1844
    150 2065 2088 2108 2136 2155 2179 2193 2210 2219
    175 2430 2455 2477 2507 2527 2552 2567 2584 2593
    Continued on next page 
    						
    							DEFINITY Enterprise Communications Server Release 7 Basic Call 
    Management System (BCMS) Operations  555-230-706  Issue 2
    June 1999
    Use of BCMS Reports for ACD Planning 
    6-29 Engineering ACD Applications with Data Obtained from the BCMS Reports 
    6
    200 2796 2823 2847 2879 2900 2926 2942 2959 2968
    225 3162 3192 3218 3251 3273 3300 3316 3334 3343
    250 3530 3562 3589 3624 3647 3675 3691 3708 3718
    275 3898 3932 3961 3997 4021 4049 4065 4083 4093
    300 4267 4302 4332 4370 4394 4423 4440 4458 4468
    350 5005 5045 5077 5117 5142 5172 5189 5208 5218
    400 5746 5788 5822 5865 5891 5922 5939 5958 5968
    450 6487 6532 6568 6612 6639 6671 6688 6707 6717
    500 7229 7277 7315 7360 7388 7420 7438 7457 7467
    550 7972 8022 8062 8109 8137 8170 8188 8207 8217
    600 8715 8768 8809 8857 8886 8919 8937 8957 8967
    650 9459 9514 9557 9606 9635 9669 9687 9707 9717
    700 10204 10261 10304 10355 10385 10418 10437 10457 10467
    750 10949 11007 11052 11104 11134 11168 11187 11207 11217
    800 11694 11754 11800 11853 11883 11918 11937 11957 11967
    850 12440 12502 12549 12602 12633 12668 12686 12706 12717
    900 13186 13249 13297 13351 13382 13417 13436 13456 13467
    950 13932 13997 14045 14100 14132 14167 14186 14206 14217
    1000 14678 14744 14794 14849 14881 14917 14936 14956 14967
    Table 6-9. 240 Seconds Average Service Time  — Continued
    AVG SPEED ANS
    agents 11 15 22 30 45 60 90 120 180
    Continued on next page 
    						
    							DEFINITY Enterprise Communications Server Release 7 Basic Call 
    Management System (BCMS) Operations  555-230-706  Issue 2
    June 1999
    Use of BCMS Reports for ACD Planning 
    6-30 Engineering ACD Applications with Data Obtained from the BCMS Reports 
    6
    Table 6-10. 300 Seconds Average Service Time 
    AVG SPEED ANS
    agents 11 15 22 30 45 60 90 120 180
    1111112222
    26677788910
    3 131313141415161820
    4 212121222324262830
    5 292930313234363941
    6 373839404144464952
    7 464748505154566063
    8 565657596164677175
    9 656667697175788386
    10 74 76 77 79 81 85 89 94 98
    12 94 95 97 100 102 107 111 117 121
    14 114 116 117 121 124 129 133 140 144
    16 134 136 138 142 145 151 156 163 168
    18 155 157 159 164 167 174 179 186 191
    20 175 178 181 185 189 196 202 210 215
    25 228 231 235 240 245 253 260 268 274
    30 281 285 289 296 302 311 318 327 333
    35 336 340 345 352 359 369 377 387 393
    40 390 395 401 409 416 427 435 446 453
    45 445 451 457 466 474 486 494 505 512
    50 501 507 513 524 532 545 554 565 572
    60 612 620 627 639 649 662 672 684 691
    70 725 734 742 755 766 781 791 804 811
    80 838 848 857 872 883 899 910 923 931
    90 952 963 973 989 1001 1018 1029 1043 1050
    100 1067 1078 1089 1106 1119 1137 1148 1162 1170
    125 1354 1368 1381 1401 1415 1434 1447 1461 1470
    150 1643 1659 1675 1696 1712 1733 1746 1761 1769
    175 1934 1952 1969 1992 2009 2031 2045 2060 2069
    Continued on next page 
    						
    							DEFINITY Enterprise Communications Server Release 7 Basic Call 
    Management System (BCMS) Operations  555-230-706  Issue 2
    June 1999
    Use of BCMS Reports for ACD Planning 
    6-31 Engineering ACD Applications with Data Obtained from the BCMS Reports 
    6
    200 2225 2245 2264 2289 2307 2330 2344 2360 2369
    225 2518 2539 2559 2586 2605 2629 2643 2660 2669
    250 2811 2834 2855 2884 2904 2928 2943 2959 2969
    275 3104 3129 3152 3182 3202 3227 3242 3259 3268
    300 3398 3425 3449 3480 3501 3527 3542 3559 3568
    350 3987 4017 4043 4076 4098 4125 4141 4159 4168
    400 4578 4610 4638 4674 4697 4724 4741 4758 4768
    450 5170 5204 5234 5271 5295 5324 5340 5358 5368
    500 5762 5799 5830 5869 5894 5923 5940 5958 5968
    550 6355 6394 6427 6467 6492 6522 6539 6558 6568
    600 6948 6990 7024 7065 7091 7122 7139 7158 7168
    650 7543 7586 7621 7664 7690 7721 7739 7757 7767
    700 8137 8182 8219 8262 8290 8321 8338 8357 8367
    750 8732 8779 8816 8861 8889 8920 8938 8957 8967
    800 9327 9376 9414 9460 9488 9520 9538 9557 9567
    850 9923 9973 10012 10059 10087 10120 10138 10157 10167
    900 10518 10570 10610 10658 10687 10719 10738 10757 10767
    950 11114 11167 11209 11257 11286 11319 11337 11357 11367
    1000 11711 11765 11807 11856 11886 11919 11937 11957 11967
    Table 6-10. 300 Seconds Average Service Time  — Continued
    AVG SPEED ANS
    agents 11 15 22 30 45 60 90 120 180
    Continued on next page 
    						
    							DEFINITY Enterprise Communications Server Release 7 Basic Call 
    Management System (BCMS) Operations  555-230-706  Issue 2
    June 1999
    Use of BCMS Reports for ACD Planning 
    6-32 Engineering ACD Applications with Data Obtained from the BCMS Reports 
    6
    Table 6-11. 600 Seconds Average Service Time 
    AVG SPEED ANS
    agents 11 15 22 30 45 60 90 120 180
    1111111111
    2333334445
    3667777889
    4 101011111111121314
    5 141415151516171819
    6 191919192021222325
    7 232324242526272830
    8 282828293030323336
    9 323233343536373941
    10 37 37 38 38 40 41 43 44 47
    12 47 47 48 48 50 51 53 55 58
    14 56 57 58 59 60 62 64 67 70
    16 66 67 68 69 71 73 76 78 81
    18 77 77 78 80 82 84 87 89 93
    20 87 88 89 90 93 95 98 101 105
    25 113 114 116 117 120 123 127 130 134
    30 140 141 143 145 148 151 156 159 164
    35 166 168 170 172 176 179 185 188 193
    40 194 195 198 200 205 208 214 218 223
    45 221 223 226 228 233 237 243 247 253
    50 248 250 254 257 262 266 272 277 282
    60 304 306 310 314 320 324 331 336 342
    70 360 363 367 371 378 383 390 395 402
    80 416 419 424 429 436 442 450 455 461
    90 473 476 482 487 495 501 509 514 521
    100 530 533 539 545 553 560 568 574 581
    125 672 677 684 691 700 708 717 723 731
    150 816 822 830 837 848 856 866 873 880
    175 961 967 977 984 996 1005 1016 1022 1030
    Continued on next page 
    						
    							DEFINITY Enterprise Communications Server Release 7 Basic Call 
    Management System (BCMS) Operations  555-230-706  Issue 2
    June 1999
    Use of BCMS Reports for ACD Planning 
    6-33 Engineering ACD Applications with Data Obtained from the BCMS Reports 
    6
    200 1106 1113 1123 1132 1145 1154 1165 1172 1180
    225 1251 1259 1270 1280 1293 1303 1314 1322 1330
    250 1397 1405 1418 1428 1442 1452 1464 1471 1480
    275 1543 1552 1565 1576 1591 1601 1614 1621 1630
    300 1690 1699 1713 1724 1740 1750 1763 1771 1780
    350 1983 1994 2010 2021 2038 2049 2063 2071 2079
    400 2277 2289 2306 2319 2337 2348 2362 2370 2379
    450 2572 2585 2603 2617 2636 2648 2662 2670 2679
    500 2867 2881 2901 2915 2934 2947 2961 2970 2979
    550 3163 3177 3198 3213 3234 3246 3261 3270 3279
    600 3459 3474 3496 3512 3533 3546 3561 3569 3579
    650 3755 3771 3794 3811 3832 3845 3861 3869 3879
    700 4051 4069 4092 4109 4131 4145 4160 4169 4179
    750 4348 4366 4391 4408 4431 4444 4460 4469 4479
    800 4645 4664 4689 4707 4730 4744 4760 4769 4779
    850 4942 4961 4988 5006 5029 5044 5060 5069 5079
    900 5239 5259 5286 5305 5329 5343 5360 5369 5378
    950 5536 5557 5585 5604 5629 5643 5660 5669 5678
    1000 5834 5855 5884 5904 5928 5943 5959 5969 5978
    Table 6-11. 600 Seconds Average Service Time  — Continued
    AVG SPEED ANS
    agents 11 15 22 30 45 60 90 120 180
    Continued on next page 
    						
    							DEFINITY Enterprise Communications Server Release 7 Basic Call 
    Management System (BCMS) Operations  555-230-706  Issue 2
    June 1999
    Use of BCMS Reports for ACD Planning 
    6-34 Engineering ACD Applications with Data Obtained from the BCMS Reports 
    6
    Trunk Engineering Guidelines
    The number of trunks required for a typical ACD ranges from 1.1 to 1.7 times the 
    number of agents (whenever a blocked call represents potential lost revenue). As 
    in the case of agents, the number of trunks required for an ACD is based on the 
    incoming traffic to each split, not the ACD as a whole.
    The left-most column in Table 6-12
     lists the number of trunks required to service a 
    split depending on the carried load in 
    Erlangs and the blocking probability. Erlang 
    is a unit of traffic intensity, or load, used to express the amount of traffic it takes to 
    keep one facility busy for one hour. Blocking probability relates to the desired 
    grade of service. The possible blocking probabilities are shown across the top of 
    Table 6-12
    , and the entries under the blocking probabilities are carried loads in 
    Erlangs.
    To determine the number of trunks needed for a given split, use Table 6-12
     as 
    follows:
    nYou will need a split report for the peak busy-hour (for example, list 
    bcms split ## time xx:xx xx:xx) for the busiest day of the week.
    NOTE:
    If the time interval is sufficiently long to cover the busiest hours of the 
    day (such as 8:00 to 18:00) you need only scan the report to 
    determine which hour is the busy hour. If you have this report for a 
    time other than the peak busy hour then you will need to estimate 
    values for the busy hour.
    nFor the identified peak busy hour, you will need to determine the AVG TALK 
    TIME and the AVG SPEED ANS. Otherwise, you must estimate the 
    average call duration: the total time a caller spends waiting for an answer, 
    plus any time on hold (in queue), and plus the service time (the time the 
    caller spends talking to an agent).
    nIf you know the calling volume, otherwise referred to as the busy-hour calls, 
    then use that value. As an alternative, you must estimate the number of 
    busy hour calls received by the ACD split during peak levels of caller 
    activity.
    NOTE:
    The calling volume is simply the sum of the two fields (# ACD and # 
    ABAND) for the identified busy hour. This does not include:
    ncalls never queued
    ncalls given Central Office (CO) busy
    nMultiply the call duration (in fractions of an hour) by the rate of busy-hour 
    calls (in calls per hour). This number is the carried load in Erlangs. 
    Abandoned calls should be multiplied by the AVG ABAND time. 
    						
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