Nortel Networks NN42030-107 - Manual (Page 19)

Getting Started
Table 4: Cellular data plan usage
Command Approximate Bytes
Call screening mode change 800
Incoming call notification 800
Incoming call answer 900
Outgoing call (Call-me-First) 1000
Outgoing call (Direct) 1000
MWI Update 500
Client polling (every 270 seconds) 700
Sample calculation
Use the following assumption for a MCC 3100 user:
• 5 logon or logout attempts per day.
• 3 calls per hour (2 inbound, 1 outbound) within an 8 hour workday.
• 5 message waiting indicator updates per day.
The following calculation shows data usage per month, assuming 20 work
days per month:
Logon and logout attempts
((5 * 1000) + (5 * 900)) * 20 = 190 000 bytes
3 calls per hour (2 inbound, 1 outbound) during an 8 hour day
((2 * 800) + (2 * 900) + 1000) * 8 * 20 = 704 000 bytes
5 message waiting indicator updates
500 * 2 = 10 000 bytes
Client polling (every 270 seconds or 13.3 an hour)
13.3 * 700 * 24 hours * 30 days = 6 703 200 bytes
The sum of cellular data used per month is:
190 000 + 704 000 + 10 000 + 6 703 200 = 7 607 200 bytes.
Nortel Mobile Communication Client 3100 for Windows Mobile User Guide 19