HC25 AT Command Set - Portech.com.tw

HC25 AT Command Set
7. Call related Commands s
7. Call related Commands
The AT Commands described in this chapter are related to Mobile Originated (MOC, i.e. outgoing) Calls and
Mobile Terminated (MTC, i.e. incoming) Calls.
7.1 ATA Answer a call
Syntax
Exec Command
ATA
Response(s)
In case of data call, if successfully connected (TA switches to data mode):
CONNECT
In case of voice call, if successfully connected:
OK
When TA returns to command mode after call release:
OK
If no connection:
NO CARRIER
Reference(s) PIN USB0-MDM USB0-APP Last
V.250 + + + -
Command Description
TA causes remote station to go off-hook (e.g. answer call).
Parameter Description
(str)
Connection status
Output only if ATX parameter setting with value greater 0. Connection speed values:
“9600“
“14400“
“28800“
“57600“
“64000“
Notes
• The command may be aborted generally by receiving a character during execution. It can't be aborted in
some connection setup states, such as handshaking.
• See also ATX for .
• If an incoming call is no longer available (already disconnected/hanged up)a "NO CARRIER" result code will
be given.
HC25_ATC_V01.200 Page 85 of 290 7/25/07
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