Nortel Networks Circuit Card User Manual

Page of 908
 NT7D16 Data Access card
 Page 489 of 906
Note: The parity determined here overrides the parity downloaded from 
the system. Also, the T (t) must be entered in the same case as the A (a). 
If you entered uppercase A for the Baud Rate, you must enter upper case 
T for the parity.
Dialing operation
Like keyboard dialing, the Hayes dialing commands allow the user to initiate 
a data call, as well as change certain dialing parameters. The commands may 
be entered in either upper or lower case, but must be the same case throughout 
the command line. Also the case must match the autobaud case.
Note: Hayes dialing does not allow for the Ring Again feature. If a call 
is made to a busy number, that call is abandoned.
Table 160 provides a list of the AT dialing commands.
Table 160
AT dialing commands (Part 1 of 2)
Command
Description
ATA
Answer (answer incoming data call)
ATDnnnn
ATDTnnnn
Dial (n = 0-9, numbers to be dialed)
A/
Repeat last command (no <CR> needed)
ATO
On-line (enter three Escape characters rapidly to go off-line)
ATDPnnnn
Voice call (n = 0-9, numbers to be dialed)
ATF0
Handsfree/mute (toggle Handsfree between mute and normal)
ATF1
Hold (put voice call on hold)
ATF2
Select (take voice call off hold)
ATH0
Hang up data call
Note 1: To use AT dialing, enter CTRL-z at carriage return (<CR>) when the port is idle.
Note 2: Follow each command (except A/) by a carriage return (<CR>) to execute it.