Table of Contents
Advertisement
1
voice
2
data
4
fax
also all other values below 128 are reserved
<status>:
0
not active
1
active
9.1.10 +CHLD Call related supplementary services
Command
execute
+CHLD=<n>
test
+CHLD=?
Optional. 07.07 section 7.12. Controls call hold, multiparty and explicit call transfer
supplementary service operations similarly as defined in GSM 02.30 section 4.5.5.1.
<n> values:
0
release all held calls or send 'busy' cause to network for a waiting call
1
release all active calls and accept other (waiting or held) calls
1x
release a specific active call x
2
active calls on hold and accept other (waiting or held) calls
2x
all active multiparty calls on hold except call x
3
add held call to multiparty call;
4
connect held and active (or MO alerting) call with each other (locally both calls
are disconnected).
Where both a held and a waiting call exist, the above procedures shall apply to the waiting
call (i.e. not to the held call) in a conflicting situation.
9.1.11 +CUSD Unstructured supplementary service data
Command
set
+CUSD=<n>,<str>,<dcs>
read
+CUSD?
test
+CUSD=?
Optional. 07.07 section 7.14. Used to send MO USSD and set the presentation of +CUSD
unsolicited result code (MT USSD). Used also to reply to a network initiated USSD (see
Result codes section).
Parameters:
<n>:
0
disable
1
enable
<str>:
string type USSD-string (when <str> parameter is not given, network is not
interrogated):
- if <dcs> indicates that GSM 03.38 default alphabet is used:
- if TE character set other than "HEX" (refer command Select TE Character Set
+CSCS):
according to rules of GSM 07.05, Annex A
- if TE character set is "HEX": ME/TA converts each 7-bit character of GSM
alphabet into two IRA character long hexadecimal number (e.g. character P
(GSM 23) is presented as 17 (IRA 49 and 55))
Response
+CHLD: (0,1,1x,2,2x,3,4)
Response
+CUSD: <m>[,<str>,<dcs>]
+CUSD: <n>
+CUSD: (0,1)
ME/TA converts GSM alphabet into current TE character set
+cme error
x
Default
0[,,0]
+cme error
x
67/113
Advertisement
Table of Contents
