Specifications

AT command set for XX Siemens mobile phones and modems
__________________________________________________________________________________________
Document No.: A30880-A10-A001-XX-
D376
Revision: Master R75
Revision Date: 29. September.2004
25
4
Fax
7
Voice, Data and Fax (default)
8
SMS
16
data circuit sync
32
data circuit async
64
dedicated packet access
128
dedicated PAD access
X
combination of some of the above classes, e.g. 255
regroups all classes and 5 regroups Voice and FAX
<CLI
validity>
0
CLI valid
1
CLI has been withheld
2
CLI is not available
<status
>
0
Inactive
1
Active
Unsolicited result code:
+CCWA: <num>,<type>,<class>,,<cli validity>,<alpha>,<line>
Parameter:
<alpha
>
String type alphanumeric representation of <num>
Only for
Master
<line
>
1
Default line
2
subscribed alternate line service (ALS); line 2
AT+CHLD
AT+CHLD
Call hold and multiparty
Test command Response:
AT+CHLD=?
+CHLD: (list of supported <n
>s)
OK/ERROR/+CME ERROR
Write command Response:
AT+CHLD=[<n>]
OK/ERROR/+CME ERROR
Parameter
<n
>
0
Terminates all held calls or sets UDUB (User Determined
User Busy) for a waiting call
1
Terminates all active calls (if there are any) and accepts the
other call (waiting call or held call)
1<x>
Terminates call number <x> (x= 1-7)
2
Puts all active calls on hold (if there are any) and accepts the
other call (waiting call or held call) as active
2<x>
Puts all active calls except call <x> (x= 1-7) on hold
3
Connects the call put on hold to the active call multiparty
4
Call transfer
In situations of conflict, the respective action is always applied to the waiting call.
Terminating calls:
Use the ”AT+CHUP” command to terminate all calls except waiting calls
Note:
The scope of this command depends on the SIM clearing and/or on the network support
AT+CLCC
AT+CLCC List Current Calls