Specifications

TC35i AT Command Set

Confidential / Released

TC35i_ATC_V01.05 Page 84 of 278 04.08.2003

waiting call is still active and can be accepted

· or ^SCWA URC (as above) when ME goes back to command mode after the

waiting call has ended.

Reference

GSM 07.07,

GSM 02.04,

GSM 02.83

Note

· With the AT+CHLD command, it is possible to establish a multiparty call or

to set the active voice call on hold and then accept a waiting voice call. For

instructions and examples see AT+CHLD in Chapter 4.16.

· Users should be aware that if Call Waiting is activated (<mode>=1), the

presentation of URCs needs to be enabled, too (<n>=1). Otherwise, on the

one hand, a waiting caller would be kept waiting due to lack of BUSY sig-

nals, while, on the other hand, the waiting call would not be indicated to the

called party.

Example

at+ccwa=1,1 To enable the presentation of the URC and to switch

on the indication of waiting calls during active voice,

data, fax calls (default classes).

at+ccwa=,2 To query the status of CW for default classes.

+CCWA: 1,1 CW is activated during voice calls.

+CCWA: 1,2 CW is activated during data calls.

+CCWA: 1,4 CW is activated during fax calls.

at+ccwa=0,0 To deactivate CW for default classes.