Chapter 10 – Supplementary Services Commands
Multi-Tech Systems, Inc. Wireless GSM/GPRS AT Commands (Document Number S000293I)
89
Supplementary Service Notifications +CSSN
Description:
This command refers to supplementary service related network initiated notifications.
Values: <n>
Parameter sets/shows the +CSSI result code presentation status
0
disable
1
enable
<m>
Parameter sets/shows the +CSSU result code presentation status
0
disable
1
enable
<code1>
0
unconditional call forwarding is active
1
some of the conditional call forwardings are active
4
closed User Group call, with CUG <index>
5
outgoing calls are barred
6
incoming calls are barred
7
CLIR suppression rejected
<code2>
0
this is a forwarded call (MT call setup)
1
closed User Group call, with CUG <index>
2
call has been put on hold (during a voice call, <number> & <type> fields may be present)
3
call has been retrieved (during a voice call, <number> & <type> fields may be present)
4
multiparty call entered (during a voice call, <number> & <type> fields may be present)
5
call on hold has been released (during a voice call)
7
call is being connected (alerting) with the remote party in alerting state in Explicit Call Transfer
operation (during a voice call)
8
call has been connected with the other remote party in Explicit Call Transfer operation (during a
voice call, <number> & <type> fields may be present)
<index>
Closed User Group index
<number>
String type phone number
<type>
Type
of
address
Syntax: Command
syntax
: AT+CSSN= <n>, <m>
When <n>=1 and a supplementary service notification is received after a mobile
originated call setup, intermediate result code
+CSSI:<code1>[,<index>]
is sent
before any other MO call setup result codes.
When <m>=1 and a supplementary service notification is received during a call,
unsolicited result code
+CSSU:<code2>[,<index>[,<number>,<type>]]
is sent.
