AT Commands Reference Manual - wireless netcontrol GmbH

Call Control
The following table shows the DL parameters.
Table 3-6: DL Parameters
semicolon (;)
Description
If the semicolon (;) is given, a voice call is originated to the last dialed number.
If the semicolon (;) is not given, a Fax/Data call is originated.
Note: The last dialed call type is irrelevant to the DL command.
Note: When ATDL is issued after a dialed number with comma digit:
• ATDL; (Voice) dials the exact number that was last dialed, including the DTMF tones
sent.
• ATDL (Data/Fax) dials the addressing information only (comma and tones are
discarded).
• If ATDL is sent before any Dial command was issued (mainly after Power On, when
the last number is an empty field), a NO CARRIER will be returned to the DTE.
• ATDL dials the last number saved in the DC Phone book (ME Dialed calls).
Example
atdl //Last called number is "035658278"
ATDL: "035658278"
OK //DATA call
atdl;
ATDL: "035658278"
OK
OK
//VOICE call
atdl //Last called number is "035658278,123,78;"
ATDL: "035658278"
CONNECT
//DATA call
atdl; //Last called number is "035658278,123,78"
ATDL: "035658278p123p78"
OK
OK
//VOICE call
1 2 3 //Sent as DTMF tones
... //Pause
7 8 //Sent as DTMF tones
H, Hang-up Call
This command hangs up a call. The H24 terminates the call whether it is a data or voice call, and
whether it is an incoming, originating, waiting, or connected call.
3-16 H24 - AT Commands Reference Manual April 15, 2010