15 Appendix
15.1 Carrier Specific Information
Each cellular provider uses a different PRI file that needs to be programmed into the modem in
order for the modem to register properly on their Cellular network and connect. These PRI files
are typically programmed in by the manufacturer of the RF module or by Land-Cellular using
special programming software at the time of purchase. The following sections list different
carriers and the details of activating modems on their network and where applicable their
username and password formats for making 1xRTT calls.
15.1.1
Verizon Wireless
15.1.1.1
Over-the-Air Provisioning
Land-Cellular modems support the service provisioning features called Over-the-Air Service
Provisioning (OTASP) and Over-the-Air Parameter Administration (OTAPA). OTASP occurs
when a user initiates a call to the service provider. No further commands are typically required to
provision the modem. For example, a user who gets a new modem/phone without any service
programming data can call the service provider's special OTASP number to have the device
programmed without physically taking it to the service provider. OTAPA occurs when the
network initiates a call to the modem and programs it without any user intervention. OTAPA is
typically used when the service provider decides to update information on many cellular devices
at the same time.
After the modem’s serial number is authorized for use with a cellular provider, you may activate
the modem over the cellular network. To perform Over-the-Air Service Provisioning, ensure the
antenna is properly attached and you have good signal. Type in
AT$KWDIR?
to query modem
and determine the currently programmed phone number. The result should be something like
$KWDIR: 0000005555
. Note the number. Also check the PRL number with
AT+GMR
, note the
number, now type:
AT+CDV*22899
After issuing the
AT+CDV*22899
command, your cellular provider will program the proper
roaming parameters into the modem. Please allow approximately four minutes for this to occur.
After waiting the appropriate amount of time for the cellular network to program the modem,
perform a power cycle by removing the DC power supply plug and reconnecting it.
Query the modem to see if the phone number on the account has been assigned to the modem
with the
AT$KWDIR?
command. If the OTASP was successful the phone number should be
print out; i.e.
$KWDIR: 9544305811
. The PRL number may been replaced with a newer revision
by the carrier, (
AT+GMR
). To further test that OTASP has taken place, type:
AT+CDV
<phone
number to call> from your terminal emulation software.
Example: AT+CDV9544305811
If this is successful, the modem will place an outbound call through the cellular network to the
phone number specified. To make a circuit-switched connection, type this command:
ATD
<phone number to call>.
If the modem did not properly dial the phone number you specified, here are a few things to
check:
First, make certain that you are not including any hyphens or spaces in the ATD dialing string.
For example, you should be entering
ATD9544305811.
After verifying that you have properly entered the dialing string, if the modem still will not place
an outbound call, you may have to enter the phone number into the modem before performing an
Over-the-Air Provision. Please see below.
