Example; Checking Network Registration; Connecting To The Internet - Multitech MultiModem iCell User Manual

BASIC OPERATIONS
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7
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Note: Signal strength of 10 or higher is needed for successful packet data sessions.

Example

A example response to AT+CSQ:
+CSQ: 15,1

Checking Network Registration

Before establishing a packet data connection, verify the is device registered on the network. To do this enter the
network registration report read command:
AT+CREG?
If the device returns:
+CREG: 0,1
or
+CREG: 0,5
The device is registered.
If the device returns:
+CREG: 0,2
The device is in a network searching state.
Checking Network Registration
To verify that a device is registered on the network, enter:
AT!STATUS
The device returns several lines of modem status information. The second to last line indicates either:
Modem has registered.
or
Modem has NOT registered.

Connecting to the Internet

To access the Internet, establish a dial-up connection.
44
6.4% to 12.8%
More than 12.8%
Not known or not detectable
®
MultiModem iCell MTCMR User Guide