GE MAC 1200 Operator's Manual page 76

AT Command for Establishing a Communication Link
AT Command for Termination of the Communication
5-20
Automatic Mode Recording: ECG Transmission
The following is an example of a dial string for a modem connected to a
branch (PBX system) and dialing a modem via the public telephone
network, using the touch tone mode.
Symbol
AT Prefix that precedes every command line
DT Touch tone dial mode
xxx After DT, enter the characters for access to the public telephone network
(e.g. 0)
W W, placed after a number, tells the modem in a PBX system to wait for the
dial tone of an outside telephone line
dial string: ATDTOW
The communication is terminated in two steps.
First, the MAC 1200/1200 ST sends an escape command to return from
the on-line state to the command state. Then the hangup command
follows.
Symbol
+++ Escape command
AT Prefix that precedes every command line
H Hangup command
hangup string: +++ATH
MAC 1200/1200 ST
2012250-021
Description
Description
Revision C