Meridian Nortel 1 Option 11C Technical Reference Manual page 92

Page 92 of 544 Provisioning
553-3011-100 Standard 14.00
Example
A customer has 180 employees and needs 100 telephones to meet the system
cutover. The customer projects an annual increase of 5 percent of employees
based in future business expansion. The employee growth forecast is:
• 180 employees x 0.05 (percent growth) = 9
• 189 employees x 0.05 = 10 additional employees at 1 year
• 199 employees x 0.05 = 10 additional employees at 2 years
• 209 employees x 0.05 = 10 additional employees at 3 years
• 219 employees x 0.05 = 11 additional employees at 4 years
• 230 employees x 0.05 = 12 additional employees at 5 years
The ratio of telephones to employees is 100/180, which equals 0.556.
To determine the number of telephones required from cutover through a five-
year interval, the number of employees required at cutover, one, two, three,
four and five years is multiplied by the ratio of telephones to employees
(0.556).
• 180 employees x 0.556 = 100 telephones at cutover
• 189 employees x 0.556 = 105 telephones at 1 year
• 199 employees x 0.556 = 111 telephones at 2 years
• 209 employees x 0.556 = 116 telephones at 3 years
• 219 employees x 0.556 = 122 telephones at 4 years
• 230 employees x 0.556 = 128 telephones at 5 years
This customer requires 100 telephones at cutover, 111 telephones at two
years, and 128 telephones at five years
Each DN assigned to a 500/2500 telephone requires a TN. Determine the
number of 500/2500 TNs required for each customer and enter this
information in "Worksheet A: Growth forecast" on page 135. Perform this
calculation for cutover, two-year and five-year intervals.
January 2002