Chapter 3 - Carrier Activation; Account Activation For Wireless Devices; Verifying Signal Strength; Checking Network Registration And Roaming Status - Multitech MultiModem rCell User Manual

Chapter 3 – Carrier Activation

Account Activation for Wireless Devices

Please refer to the wireless account Activation Notice included with your unit and located on the MultiModem CD. Follow the
directions on the Activation Notice to activate your account.
Note: If you need remote access to your MultiModem over the Internet for remote configuration, you need to ensure
that your wireless network provider has provisioned mobile terminated data and fixed or dynamic public IP address in
which they can configure the network to redirect any incoming connection to that predefined IP.

Verifying Signal Strength

To communicate directly with the cellular modem to verify signal strength, network registration, and roaming status, telnet to the
modem.
Note: Ensure that the Status LED is blinking, indicating that the router is ready. Ensure that PPP is disabled before verifying
signal strength.
1. To Telnet to the modem. You can access the modem thru the Run icon or from the Command Prompt:
Click Start I Run icon. In the Open window, enter cmd and then press ENTER.
Click Start I All Programs I Accessories I Command Prompt
●
In the command window, type telnet 192.168.2.1 5000
●
At the Login prompt, type the default user name: admin (all lower-case). Press ENTER
●
At the Password prompt, type the default password: admin (all lower-case). Press ENTER
2. In the command window, type AT+CSQ
3. The router responds with the received signal strength (rssi) and the channel bit error rate (ber).
RSSI ranges from 0 to 31. BER ranges from 0 to 7
10 – 31
0 – 9
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Checking Network Registration and Roaming Status

In this procedure, you will verify that the MultiModem rCell Router has been registered on the wireless network. Using
HyperTerminal, type AT+CREG? for most models. The MTCBA-EV2-EN2 does not support this command, see the Note below
for an alternative method.
Note: Ensure that PPP is disabled before checking network registration and roaming status.
1. In the command window, type AT+CREG?
2. The router will respond in one of the following ways:
Value
+CREG: 0,0
+CREG: 0,1
+CREG: 0,5
Note: If the router indicates that it is not registered, verify the signal strength to determine if the problem is the strength of the
received signal.
MTCBA-EV2-EN2 Note: Using a terminal program, sending the command AT!STATUS will return several lines of information.
The second from the last response will either be "Modem has registered" or "Modem has NOT registered".
Multi-Tech Systems, Inc. MultiModem rCell User Guide
or
Signal Strength – RSSI
Sufficient
Weak or Insufficient
Insufficient
Network Registration Verification
Network Registration Status
The router is not registered on any network
The router is registered on the home network
The router is registered on a network and it is roaming
(7 is the highest error rate).
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