Confidential
USERS MANUAL
59(158)
Document number
Revision
1/198 17-4/FCP 101 3045 Uen
D
Parameter
Description
<dial string>
0 1 2 3 4 5 6 7 8 9 * #
Valid characters for origination.
“space”
(
)
-
P
T
W
Characters that may appear in <dial string> and are skipped (ignored) by the
CM52.
Result Codes
Description
OK
The command was executed successfully.
ERROR
The command was not executed successfully.
NO CARRIER
The CM52 does not currently have service.
4.4.4
ATD – Overdial (DTMF Tones)
Description
Syntax
Possible responses
Transmit DTMF tones
during an active call
ATD<overdial> OK
If a call is in progress, the command is used for sending DTMF tones in the <overdial> string. If not on a call,
the command is used to originate a call. Refer to section 4.4.3 for origination requests
The <overdial> parameter specifies the <overdial> string that will be issued as DTMF tones. The valid
characters for the <overdial> parameter are listed in the parameter table below. The maximum total length of
“<dial string>,<overdial>” is 32.
Parameter
Description
<overdial>
,
Commas encountered within an <overdial> string generate a pause according
to the value of the S8 register.
0 1 2 3 4 5 6 7 8 9 * #
Valid characters for DTMF tones.
4.4.5
ATD! – Hook Flash
Description
Syntax
Possible responses
Generate a Flash message ATD![<data>]
OK
This command sends a Flash message or a Flash with Info message to the network. The command is only
valid during a voice call.
The Flash and Flash with Info messages are used for supplementary services such as three-way calling, Call
Hold and Call Waiting. The information for the flash with info are entered after the “!”. See example below.
Example of 3-way calling, Carrier requirements for completing 3-way calls can vary (the CM52 responses have
been omitted in the example):