Multi-Tech Systems MTCBA-G-F1 - Manual (Page 19)

Chapter 2 – Installation
Multi-Tech Systems, Inc. MultiModem GSM/GPRS User Guide 19
Verifying Network Registration
In this procedure, you will verify that the Wireless MultiModem has been registered on the wireless
network. To do so, you will use the common communications program Hyperterminal.
1. Using the Hyperterminal program at the computer to which the Wireless MultiModem is
connected, type the AT command AT+CREG?. A value for the modem’s network registration
status will be returned.
2. Verify the result with the following chart:
Network Registration Verification
Value Network Registration Status
0, 1 Yes
0, 5 Yes
(registered roaming)
Note: If the modem is not registered, perform the procedure for verifying signal strength to determine the
strength of the received signal.