User's Manual

3. Locate the telephone type column in Table 12: Example of a completed estimate
table on page 68
.
In the example, H&W is the users with both a handset and a wired telephone.
4. Find the handset estimate range in
Table 14: Cell reengineering on page
68.
In the example, 11.6 falls within the From 0 up to 20 category.
5. Determine if a cell requires division or uses a 12-channel basestation.
In the example From 0 up to 20, division is not required.
6. Repeat the preceding steps to determine the required number of cells that need
subdivision, except for telephone types M. For M see
A mix of users with and without
wired telephones in a cell on page 69.
7. Transfer the results into the provisioning records.
Cell division requirements in special cases
This section describes how to determine cell division in the following special cases.
•
where no office information is available.
• where a mix of handset users exist with and without wired telephones
No office information
If the location of the offices of users is not known, calculate the estimated number of handsets
for each cell using this formula.
The formula is based on the assumption 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 method described starting on
The cell
reengineering process on page 62 provides accurate cell division results.
A
mix of users with and without wired telephones in a cell
Use this procedure for mixed handset users. Telephone traffic generated by handset users
equates to that of handset and wired users. Combine the two groups for cell size
recalculation.
Table 15: Adjustment for users without wired telephones
Estimated number of handsets for users
without wired telephones
Adjusted estimated number of handsets
for each cell
0 0
1 2
2 3
System deployment
SIP DECT Fundamentals October 2012 69