Specifications

Open CTM (Revision D)

Connecting to a CTM-15X Modem Remotely

Telnet and Device Embedded Web Page Configuration

Follow the directions for telnet configuration listed in How To Connect to a CTM-15X Modem - Locally

and substitute 192.168.1.1 with the known IP address of the remote device.

SMS configuration

No configuration of the CTM-15X is required for the modem to accept SMS commands.

The commands via SMS feature is supported only on CTM15x modems installed with Sierra Wireless

cards and running firmware release R1.2.0. This feature is built into the firmware and no additional

modem configuration is required to enable commands via SMS.

CTM-15X commands may be issued via a SMS text message sent from a mobile phone or from a cell

phone carrier’s web site for execution on the CTM15x modem upon receiving the SMS message. One or

more commands may be included in the body of a SMS text message up to a maximum message size of

166 characters. The destination of such a SMS message is the phone number of the modem, which may

be obtained by entering cmd dir from a Telnet or serial port console session.

Message format for CTM15x commands via SMS:

NNNN:<command> <parameters> … NNNN:<command> <parameters> … (up to 166 characters)

Where:

NNNN is the last 4 digits of the modem's ESN

<command> is the command to be executed. cmd should not be included in <command> and commands

do not have to be separated by a linefeed (<CR><LF>)

<parameters> are the parameters for each command

Example: If the last 4 digits of the modem’s ESN are 1234

Two commands separated by a space in SMS message

1234:gpsremip 2 123.456.78.900 1234:save

Three commands separated by <CR><LF> for each line of the SMS message:

1234:gpsremip 2 123.456.78.900

1234:gpsremport 2 15000

1234:save

ULCP configuration

ULCP configuration is performed by sending properly formatted binary messages to port 6100 of the

remotely connected device.

See ULCP Remote Configuration Messages for message format.