Siemens M20 Terminal Technical Description page 30

Siemens Information and Communication Products
ATA Answer a call
Execute command Response
ATA TA causes remote station to go off- hook (i.e. answer call).
Note1: any additional commands on the same command line are ignored.
Note2: this command may be aborted generally by receiving a character during execution. This
command cannot be aborted in some connection setup states, such as handshaking.
If successfully connected
CONNECT<text>
TA switches to data mode.
When TA returns to command mode after call release
OK
If no connection
NO CARRIER
Parameter
Reference Note
V.25ter
ATD Mobile originated call to dial a number and call of supplementary services
Version 8 dated 15.03.00
Note: <text> only if parameter setting X>0
AT command interface
A
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