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  • Supported AT commands for Diva Media boards Port driver
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Overview

Diva System Release for Windows XP/2003/Vista/2008/Windows 7 includes a 'port driver' which enables many non-ISDN applications such as terminal emulation programs and fax programs to connect to devices and services across the ISDN network.

The port driver is a COM Port emulation working directly on top of the Diva Media board. The functionality of the COM Port can be controlled using AT commands, or by installing a 'virtual modem' on the port. 

Predefined modem configuration profiles

For ease of use, Dialogic have included a range of pre-defined AT strings that encompass most of the most commonly used setups. 

Simply type in the following AT command:

AT &F<n>

- Where <n> is the number of one of the pre-defined AT command strings. This will reset the modem and recall the factory setting for that number according to the table outlined below. 

n=1X.75
Protocols:L1:HDLC framing, L2:X.75 SLIP, L3:transparent
AT String:+iM1 +iP1 +iS7/0 +iN255 +iB255 +iC1 E1 Q0 V1 X4 &D2 &K0 &Q0 \V0 \N3 %C3 -J1 +iU0 +iD0 +iF0 S0=0 S7=60 S9=6 S10=14
n=2V.110 synchronous
Protocols:L1:V.110 synchronous, L2:transparent, L3:transparent
AT String:+iM1 +iP2 +iS7/0 +iN255 +iB255 +iC1 E1 Q0 V1 X4 &D2 &K0 &Q0 \V0 \N3 %C3 -J1 +iU0 +iD0 +iF0 S0=0 S7=60 S9=6 S10=14
n=3V.110 asynchronous
Protocols:L1:V.110 asynchronous, L2:transparent, L3:transparent
AT String:+iM1 +iP3 +iS7/0 +iN255 +iB255 +iC1 E1 Q0 V1 X4 &D2 &K0 &Q0 \V0 \N3 %C3 -J1 +iU0 +iD0 +iF0 S0=0 S7=60 S9=6 S10=14
n=4Analog synchronous
Protocols:L1:analog synchronous, L2:transparent, L3:transparent
AT String:+iM1 +iP4 +iS1/2 +iN255 +iB255 +iC1 E1 Q0 V1 X4 &D2 &K0 &Q0 \V0 \N3 %C3 -J1 +iU0 +iD0 +iF0 S0=0 S7=60 S9=6 S10=14
n=5Analog asynchronous
Protocols:L1:analog asynchronous, L2:transparent, L3:transparent
AT String:+iM1 +iP5 +iS1/2 +iN255 +iB255 +iC1 E1 Q0 V1 X4 &D2 &K0 &Q0 \V0 \N3 %C3 -J1 +iU0 +iD0 +iF0 S0=0 S7=60 S9=6 S10=14
n=6V.120
Protocols:L1:HDLC framing, L2:V.120, L3:TA
AT String:+iM1 +iP6 +iS7/0 +iN255 +iB255 +iC1 E1 Q0 V1 X4 &D2 &K0 &Q0 \V0 \N3 %C3 -J1 +iU0 +iD0 +iF0 S0=0 S7=60 S9=6 S10=14
n=7V.120 56K
Protocols:L1:HDLC framing, L2:V.120, L3:TA
AT String:+iM1 +iP6 +iS7/170 +iN255 +iB9 +iC1 E1 Q0 V1 X4 &D2 &K0 &Q0 \V0 \N3 %C3 -J1 +iU0 +iD0 +iF0 S0=0 S7=60 S9=6 S10=14
n=9PPP
Protocols:L1:HDLC framing, L2:transparent, L3:transparent
AT String:+iM4 +iP9 +iS7/0 +iN255 +iB255 +iC1 E0 Q0 V0 X4 &D2 &K0 &Q0 \V0 \N3 %C3 -J1 +iU0 +iD0 +iF5 S0=0 S7=60 S9=6 S10=14
n=10PPP 56K
Protocols:L1:HDLC framing, L2:transparent, L3:transparent
AT String:+iM4 +iP9 +iS7/170 +iN255 +iB9 +iC1 E0 Q0 V0 X4 &D2 &K0 &Q0 \V0 \N3 %C3 -J1 +iU0 +iD0 +iF5 S0=0 S7=60 S9=6 S10=14
n=13Group 3 Fax
Protocols:L1:T.30, L2:T.30, L3:T.30
AT String:+iM1 +iP7 +iS1/2 +iN255 +iB255 +iC1 E1 Q0 V1 X4 &D2 &K0 &Q0 \V0 \N3 %C3 -J1 +iU0 +iD0 +iF0 S0=0 S7=60 S9=6 S10=14
n=14Generic Server Modem 
Protocols:(protocol will be detected)
AT String:+iM1 +iP0 +iS255/255 +iN255 +iB255 +iC1 E1 Q0 V1 X4 &D2 &K0 &Q0 \V0 \N3 %C3 -J1 +iU0 +iD0 +iF0 S0=0 S7=60 S9=6 S10=14
n=15X25 DTE Mode
Protocols:L1:HDLC framing, L2:X.75 SLIP, L3:ISO 8208
AT String:+iM1 +iP12 +iS9/0 +iN255 +iB255 +iC1 E1 Q0 V1 X4 &D2 &K0 &Q0 \V0 \N3 %C3 -J1 +iU0 +iD0 +iF0 S0=0 S7=60 S9=6 S10=14
n=16SDLC
Protocols:L1:HDLC framing, L2:SDLC, L3:transparent
AT String:+iM1 +iP13 +iS7/0 +iN255 +iB255 +iC1 E1 Q0 V1 X4 &D2 &K0 &Q0 \V0 \N3 %C3 -J1 +iU0 +iD0 +iF0 S0=0 S7=60 S9=6 S10=14


NOTE

If an application talks directly to a COM Port, instead of via one of the virtual modems, you will need to initialise that port 'manually' using AT commands. Otherwise, it will simply default to being an X.75 modem.

Background

When a virtual analogue modem has been installed on COM5, for example, then an application will dial out using the particular virtual modem that has been initialised as an analogue modem.

However, in the situation where the application talks directly to the COM port, rather than to the virtual modem which has been installed on that COM port, then the COM Port itself still has to be manually initialised to be an analogue modem. If not, it will default to being its default value - an X.75 modem, even though it is easy to assume that you have installed an analogue modem on it.

This flexibility allows the more sophisticated user to change modems 'on the fly' no matter what has been pre-set using the configuration tool.

  • For a full list of all the supported AT commands, please consult the online Help within the Diva software.
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