NETGEAR XM128 ISDN - Manual (Page 51)

Reference Guide for the Model XM128 ISDN Digital Modem
ISDN Overview 6-3
Conventional dialing commands ATD, ATDT, and ATDP, used by much of the existing
communication software, can be mapped onto one of the new dialing commands according
to the AT&O setting as shown in
Table 6-1 .
The factory default is AT&O2, which means that the Model XM128 modem selects ISDN data
mode when you do not specify the communication mode to use (that is, ATD or ATDT).
Placing the Call
To initiate a call, choose the proper communication mode and configure the mode according to
the bearer service (or protocol) you want to use.
Table 6-2 contains some simple commands that
are useful when placing a call.
Table 6-1. Dialing commands
AT Command Dial string it maps to
AT&O0 ATD, ATDT, and ATDP are the same as ATDB.
AT&O2 ATD, ATDT, and ATDP are the same as ATDI.
AT&O3 ATD, ATDT, and ATDP are the same as ATDA.
Table 6-2. Call placing commands
Command Description
ATBnn Changes ISDN B channel protocol setting
ATDL Redials the last dialed telephone number