Meridian America 21 Manual De Usuario

 Provisioning guidelines

Studies have been conducted which estimate the average line 

 to

never be greater than 5.5 in 90 percent of all businesses. If attempts to
calculate the 

 using the comparative method or the manual

calculation have not been successful, the default-of 5.5 line 

 can be

used.

The network line usage is determined by multiplying the number of lines by
5.5 

 The total is then multiplied by 2 to incorporate the 

 Unfortunately, when this method is used, the intra 

 is added

twice to the equation, and the result could be over provisioning if the intra

 is high.

Another difficulty experienced with this method is the inability to forecast
individual trunk groups. The trunk and intra 

 is forecasted as a sum

group total. Examples of the Default method and the Manual calculation
method are shown in Table 3-4 for comparison.

 275 Stations at Cutover

Stations at 2 years

Stations at 5 years

Cutover 275 x 5.5 

 x 2 = 3025 CCS Total System Load

Total System Load

CCS Total System Load

System engineering 553-3001-151