Test if the command is AT+CSSN=? supported

•_ +CSSN: (list of supported <n>s),(list of supported <m>s)

•_ +CME ERROR <err>

•_ OK

•_ ERROR

This command refers to supplementary service related network initiated notifications. The set command enables or disables the presentation of notification result codes from TA to TE.

When <n>=1 and a supplementary service notification is received after a mobile originated call setup, unsolicited result code +CSSI: <code1>[,<index>] is sent to TE before any other MO call setup result codes presented in this ETS or in V.25ter. When several different <code1>s are received from the network, each of them shall have its own +CSSI result code.

When <m>=1 and a supplementary service notification is received during a mobile terminated call setup or during a call, or when a forward check supplementary service notification is received, unsolicited result code +CSSU: <code2>[,<index>] is sent to TE. In case of MT call setup, result code is sent after every +CLIP result code (refer command “Calling line identification presentation +CLIP”) and when several different <code2>s are received from the network, each of them shall have its own +CSSU result code.

Note!_ The difference between <index> and <cindex> is that <index> is a position mark while <cindex> is a unique value for each CUG. <index> is not supported.

Test command returns values supported by the TA as a compound value.

<n> Description

0Disable the +CSSI result code presentation status in the

TA

1Enable the +CSSI result code presentation status in the

TA

<m> Description

0Disable the +CSSU result code presentation status in the

TA

1Enable the +CSSU result code presentation status in the

TA

Owner’s Manual

Rev 1.0

Page 269 of 269