Ericsson T39 At Command Reference page 94

AT command
AT+CHLD
AT+CHLD=2
ATH
MMI Configuration
This scenario shows various settings of the MMI
AT command
AT*ELAN="sv"
AT*ESAM=2
AT*ESBL=1,1
AT*ESIL=1
AT*ESKS=1
AT*ESMA=2
AT*ESKL=1
AT*ETXT=1,"Good
Evening"
AT*ESMM=1
Response
*ECAV: 1,3,1,,
OK
*ECAV: 1,4,1,,
OK
*ECAV: 1,3,1
OK
*ECAV: 1,0,1,8,16 IDLE. Call Control exit cause 16 (normal clearing)
RING
*ECAV: 1,6,128,,
RING
RING
Response
OK
OK
OK
OK
OK
OK
OK
OK
OK
Comment
ACTIVE CALL, VOICE1
Put call on hold
HOLD, VOICE1
Retrieve held call
ACTIVE CALL, VOICE1
Hang up
Incoming call
ALTERING, VOICE2
Comment
Sets the MMI language to Swedish
Answer mode 'AUTO'
Back light always on when phone is car mounted
Request phone silent mode
Silent mode icon displayed
Set 'key pressed' sound to CLICK
Set 'mail received' sound to TONE
Set key lock mode to AUTOMATIC
The phone keyboard will, after a time delay, be locked
New greeting text entered
Activate minute minder during call
AT Commands Phone Terminal Terminated 92