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2 ata answer a call, Ata answer a call, With – Siemens Brodersen MC55 AT User Manual

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MC55_ATC_V04.00

Page 127 of 475

3/17/06

Confidential / Released

7.2

ATA Answer a call

Syntax

Command Description

TA causes remote station to go off-hook (e.g. answer call).

Parameter Description

Connection status

output only if

ATX

parameter setting with value greater 0.

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.

• If

AT+FCLASS

setting is 1 or 2, all incoming calls will be answered as fax calls, when ATA is issued on multi-

plexer channel 1 resp. ASC0. For calls explicitly signalled as voice or data calls, this procedure will fail with

result code "NO CARRIER", but the call in question will continue to ring.

It is possible to change the setting for

AT+FCLASS

to 0 while the call is ringing, and accept the call normally

afterwards with

ATA

.

• The ATA command may be used also to accept a network request for a PDP context activation (see

ATA

).

• See also

ATX

for

.

• If an incoming call is no longer available (already disconnected/hanged up)a "NO CARRIER" result code will

be given.

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

ASC0 ASC1

MUX1

MUX2

MUX3 Charge

Last

V.250

%

%

%

%

%

%

!

!

!

(str)