To set the SPIDs manually:
Command
Follow the equal sign with:
AT*S1=
SPID for telephone number 1
AT*S2=
SPID for telephone number 2
TEIs
The Terminal Endpoint Indentifiers (TEI) for your ISDN TA are set using AT*T=.
Command:
Follow the equal sign with:
AT*T1=
TEI for telephone number 1
If set to 255, TEI is set automatically
AT*T2=
TEI for telephone number 2
If set to 255, TEI is set automatically
AO/DI
Always On/Dynamic ISDN allows low-bandwidth data operations to be carried on
over your ISDN line’s D-channel. Its settings are adjusted using a number of AT
commands.
To turn AO/DI on and off:
Command:
Result:
AT*A=0
Disables AO/DI (default)
AT*A=1
Enables AO/DI
To set the telephone number and TEI for AO/DI:
Command:
Follow the equal sign with:
AT*PD=
Packet Telephone Number on the
D-channel for AO/DI connections to your
ISDN TA
AT*TD=
0-63 sets TEI to a fixed assignment
255 sets TEI automatically
Default setting is 21
To set the long distance packet carrier code for your D-channel’s X.25 connection:
Command:
Follow the equal sign with:
AT*C0=
Four-digit long distance
packet carrier code
Request Reverse Charge
To enable and disable the Request Reverse Charge option, which allows you to
request that the charge for an X.25 connection on your ISDN TA’s D-channel be paid
by the recipient of the call:
Command:
Result:
AT*Y=0
Disable X.25 Requst Reverse Charge
(default)
AT*Y=1
Enable X.25 Request Revers Charge
