User manual

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 Frequency
Cellular frequency band the modem is using, 800MHz and 1900MHz are mainly in the US and outlying areas. In
some cases 900 and 1800 will be seen for European or Foreign carriers.
 Roaming
Options are either Roaming or Not Roaming and may defer from the PRL in the case of CDMA.
 Signal Strength (dBm)
Measured in dBm, this is the Received Signal Strength Indicator (RSSI).
 Diagnostic
If less than 128, this is the number of successful PPP connections since the modem was rebooted. If 128 or
greater, the formula Diagnostic value – 128 = the number of times the cellular module has been reset since the
modem was rebooted.
GSM Connection Status
 Service Type:
Determines the type of network your device has connected to; GPRS, EDGE, HSDPA, HSUPA, or HSPA. "Check SIM"
will be displayed if the SIM is invalid, missing, or if the PIN needs to be entered.
 MDN:
The Mobile Directory Number is the phone number assigned to the SIM card supplied by the carrier. The MDN
may display “NOT AVAILABLE” if the PIN status is disabled or the MDN is unknown.
 IMEI:
The International Mobile Equipment Identity is a unique 15-digit number that serves as the serial number of the
GSM module in the modem.
 IMSI:
The International Mobile Subscriber Identity is a unique number which designates the subscriber. This number is
used for provisioning in network elements. The IMSI may display “NOT AVAILABLE” if a SIM card is not detected.
 Country:
Country name or code associated with the GSM network.
 Carrier:
Cellular provider name or code.
 Cell ID:
Network Identifier, this is supplied automatically from the network.
 Channel:
Cell Site channel number at which the modem is connected and is useful for the carrier in the event of
troubleshooting.
 Frequency:
Cellular frequency band the modem is using, 800MHz and 1900MHz are mainly in the US and outlying areas. In
some cases 900 and 1800 will be seen for European or Foreign carriers.