BGS2T AT Command Set
7.2 ATA
BGS2T_ATC_V01.301 Page 138 of 554 1/31/12
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7.2 ATA Connect to Incoming Call
ATA connects the BGS2T to an incoming voice or data call, which is indicated by a "RING" URC. AT+CRC allows
to customize the format of the incoming call URC.
ATA may also be used to accept a network request for a PDP context activation (see ATA).
Syntax
Parameter Description
Connection speed
Presented only if ATX parameter setting is greater 0.
Possible connection speed values:
“300“
“1200“
“2400“
“4800“
“9600“
“14400“
Notes
• Additional AT commands on the same command line are ignored.
• ATA may be aborted if 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.
Exec Command
ATA
Response(s)
In case of incoming data call, if successfully connected (ME switches to data mode):
CONNECT <text>
In case of voice call, if successfully connected:
OK
When ME returns to command mode after call release:
OK
If incoming call is not available, i.e. already disconnected or hanged up:
NO CARRIER
PIN ASC0 MUX1 MUX2 MUX3 Last Reference(s)
+ + + + + - - V.250
<text>
(str)
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