Ata Answer A Call; Atd Mobile Originated Call To A Specified Number - Multi-Tech MultiModem EDGE Reference Manual

7.2 ATA Answer a Call

Description:
Exec Command Syntax:
Response:
Parameter Description:
<text>
Connection status
Output only if ATX parameter setting with value greater 0. Connection speed values:
300
1200
2400
4800
9600
14400
Notes
• Any additional commands on the same command line are ignored.
•
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.
•
The ATA command may be used also to accept a network request for a PDP context activation (see ATA).
•
See also ATX for <text>.
•
If an incoming call is no longer available (already disconnected/hang up), a "NO CARRIER" result code will be
given.

7.3 ATD Mobile Originated Call to a Specified Number

This command can be used to set up outgoing voice or data calls. It also serves to control
Description:
Supplementary Services. The termination character ";" is mandatory to set up voice calls or to
send *# codes for Supplementary Services. It must not be used for data calls.
Different call release indications:
•
Upon termination, an outgoing data call may show a different result code than a voice call
would show under identical conditions. In order to track down the actual reason for call
termination, AT+CEER or ATS18 should be used for all applicable connections.
Using ATD during an active call:
•
When a user originates a second voice call while there is already an active voice call, the
first call will automatically put on hold. The second call attempt is acknowledged with "OK"
immediately after dialing with ATD has completed, without relation to a successful call setup.
In case of failure, the additional result codes "NO CARRIER", "NO DIAL TONE", "NO
CARRIER" will be presented afterwards (see example below).
Exec Command Syntax:
Response:
Multi-Tech Systems, Inc. AT Commands for EDGE Modems (S000371G)
TA causes remote station to go off-hook (e.g., answer call).
ATA
In case of data call, if successfully connected (TA switches to data mode):
CONNECT <text>
In case of voice call, if successfully connected: OK
When TA returns to command mode after call release: OK
If no connection: NO CARRIER
ATD<n>[<mgsm>][;]
If no dial tone (parameter setting ATX2 or ATX4): NO DIALTONE
If busy (parameter setting ATX3 or ATX4): BUSY
If a connection cannot be set up: NO CARRIER
If successfully connected and non-voice call (TA switches to online data mode):
CONNECT <text>
When TA returns to command mode after call release: OK
If successfully connected and voice call: OK
Chapter 7 – Call-Related Commands
OK
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