Cell division requirements in special cases 93The formula assumes that users are located evenly throughout the cells.However, most users offices are clustered in specific areas of a building.The formula has limitations, as cells can vary in size. The methoddescribed starting on “The cell reengineering process” (page 83) givesmore accurate cell division results.A mix of users with and without wired telephones in a cellUse this procedure for mixed handset users. This procedure lets thetelephone traffic generated by handset users to be equated to thatof handset and wired users. Combine the two groups for cell sizerecalculation purposes.Table 19Adjustment for users without wired telephonesEstimated number of handsets for userswithout wired telephonesAdjusted estimated number of handsets foreach cell0 01 22 33 54 75 96 117 128 149 1610 1811 2012 2213 2414 2515 2716 2917 3118 3419 36Nortel Communication Server 1000SIP DECT FundamentalsNN43120-123 01.076 January 2009Copyright © 2008-2009 Nortel Networks.