Data Call; Switching Modes (Data Mode/Command Mode) - Motorola g20 Developer's Manual

Using the Commands
at+chld=2
OK
atd035659260;
OK
CONNECT
(Dual call state: one call on hold; 2nd is active.)
at+chld=3
OK
(Active conference of two calls)
at+clcc
+CLCC: 1,0,0,0,1,"051632601",129,""
+CLCC: 2,0,0,0,1,"035659260",129,""
ath
NO CARRIER
NO CARRIER
OK
5.4

DATA CALL

5.4.1

Switching Modes (Data Mode/Command Mode)

atd054565190
CONNECT
aaaaaaaaaaaaa
+++
OK
ati3
274
//Call hold, switch command
//Active call switched to hold
//Calling the second member of the conference
//Call link command
//Held call is linked to active call
//Verifying call state through CLCC
//(Verifying call state is optional.)
//Hang up the conference call
//First member dropped
//Second member dropped
//Calling the remote modem
//Receiving binary data from remote side (g20 is in Data mode)
//Sending escape sequence to remote side
//g20 is in Command mode
//Issuing an AT command
98-08901C68-O