Ositech comm Trumpcard Data/Fax Modem Manual de usuario descargar pdf (Pagina 31)

User’s Guide and Reference 4 - 11

Basic Modem Operation

The initialization string sent to the Trumpcard for cellular connections may

not result in the optimum connection when used for landline connections.

If possible, set the communications software to send the desired

initialization string based on the type of connection being used.

Refer to the section Receiving an Incoming Call for details on how to

command the Modem to receive incoming calls.

Cellular Call Status

The Trumpcard provides a method of determining if the cable connection

to the cellular phone is operational. The AT^T6 command is used for this

purpose and returns a decimal number representing the current status.

The bit map for the status byte is:

Bit # Description

0 Cellular phone is receiving an incoming call

1 Cellular phone is in use

2 Cellular phone is locked

3 There is no service for cellular phone

4 Cellular phone is powered on

5 Cellular driver is initialized

6–

7 Cellular cable detected

The bit map values have to be converted from binary to decimal. The most

common values are:

160 Cellular cable is detected and driver is initialized.

176 Cellular cable detected, driver is initialized and phone is

powered on. (This state is required to place a call.)

178 Cellular cable detected, driver is initialized, phone is powered

on and cellular phone in use.

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Ositech comm Trumpcard Data/Fax Modem Manual de usuario Pagina 31