PIONEERPOS G24-LC manual Dialing Using ATD, No Carrier AT+CHLD=0, AT+FCLASS=1

Call Control

Call Control

The following figure is a detailed view of the states the G24-L goes through for Voice and CSD Data, as shown in Figure 4-2. Note that between the time the OK is received and the actual connection occurs, call state alerts are received.

			Idle
			Dial
	Released
			Alert
		Connected
		Hold
Figure 4-10: Call States
Dialing Using ATD
atd+44 34 56 78;		// VOICE call; number includes international access code
OK
OK
atd17085763400;		//Second VOICE call
OK
OK		//Call to 44345678 is being put on hold
ath		//Hang up active call
NO CARRIER
OK
AT+CHLD=0		//Hang up held call
NO CARRIER
OK
atd+44 34 56 78		//DATA call
...
OK		//Move to online Data state
terminal (+++ is not displayed)		//ESC sequence back to the Command state. +++ is sent from the
ath		//Hang up data call
NO CARRIER
OK		//Data call terminated
AT+FCLASS=1
OK
atd+44 34 56 78		//FAX call
...
NO CARRIER		//Fax call was terminated by remote side

4-14 G24-L AT Commands Reference Manual April 15, 2008