Telenetics 56 - Manual (Page 71)

AT Commands
Page 63
This command may not be permitted in some countries.
Result Code
OK
A - Answer
The modem will go off-hook and attempt to answer an incoming call if correct conditions
are met. Upon successful completion of answer handshake, the modem will go on-line in
answer mode. This command may be affected by the state of Line Current Sense, if
enabled. (Most countries do not require Line Current Sense.) Operation is also dependent
upon +FCLASS command and country-specific requirements.
If +FCLASS=0 is selected, the modem will enter the connect state after exchanging
carrier with the remote modem. If no carrier is detected within a period specified in
register S7, the modem hangs up. Any character entered during the connect sequence will
abort the connection attempt.
If +FCLASS=1, 1.0, or 2 is selected, the modem will go off-hook in V.21 answer mode.
It will generate the V.21 2100 Hz answer tone for 3 ± 0.5 seconds and, following a delay
of 70 ms, will proceed as if the +FTH=3 command were issued. At any stage up to (but
excluding) the +FTH=3 command state, any character will abort the communication.
(See the description of the +FTH command for details.)
H - Disconnect (Hang-Up)
This command initiates a hang up sequence.
This command may not be available for some countries due to PTT restrictions.
Syntax H<value>
Defined Values
<value> Decimal number corresponding to the selected option.
0 The modem will release the line if the modem is
currently on-line, and will terminate any test (AT&T)
that is in progress. Country specific, modulation
specific, and error correction protocol specific (S38)
processing is handled outside of the H0 command.
1 If on-hook, the modem will go off-hook and enter
command mode. For US models, the modem will
remain off-hook. For W-class models, the modem will
return on-hook after a period of time determined by S7.
Result Codes
OK <value> = 0 or 1
ERROR Otherwise.
O - Return to On-Line Data Mode
This command determines how the modem will enter the on-line data mode. If in the on-