
Getting Started
Nortel Mobile Communication Client 3100 for Windows Mobile User Guide 19
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.
Subscriber Identity Module (SIM) card
You can change the subscriber identity module (SIM) card in your device.
As long as the new SIM card supports a data connection, the device
sends the telephone number associated with the SIM to the MCG 3100
during the log on process. You continue to make and receive calls without
changing your client configuration. People calling you do not dial different
telephone numbers when you change SIM cards.
MWI Update 500
Client polling (every 270 seconds) 700
Table 3: Cellular data plan usage
Command Approximate Bytes
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