Getting Started20 NN42030-107 MC 3100 3.1 Standard 03.03 November 2009Subscriber Identity Module (SIM) cardYou can change the subscriber identity module (SIM) card in your device.As long as the new SIM card supports a data connection, the devicesends the telephone number associated with the SIM to the MCG 3100during the log on process. You continue to make and receive calls withoutchanging your client configuration. People calling you do not dial differenttelephone numbers when you change SIM cards.Battery lifeThe battery life of your MCC 3100 device will vary, depending on theamount of use. While operating in standby mode, you can expect24 hours standby time while connected to a 2G network, and 10 hoursstandby time while connected to a 3G network.Standby mode is only available with Pocket PCs. Smartphones are eitheron or off.Standby mode saves power in the following ways:• WiFi and Bluetooth connections are disabled.• Device backlight, touchscreen, and audio are off.• Programs are disabled and CPU activity is reduced.You can receive cellular and Short Message Service (SMS) calls instandby mode, and programs that are scheduled at a particular time willreactivate the device.The MCC 3100 for Windows Mobile configuration can impact theoperation of standby mode. For example, if you enable the DeviceStandby option in the Advanced Settings menu, both the WiFi and cellularradios will remain switched on when the device goes into standby mode.There are many factors that affect battery life. If you have devices forwhich you do not get the above standby time, then contact Nortel Supportto discuss the scenario.
