User's Manual

Page 92 of 187
TECHNICAL MANUAL
Telit GM862 PCS
Tri Band GPRS Data Terminal System Rev.1
2.5.3.11 +CUSD - unstructured supplementary service data
+CUSD – unstructured supplementary service data
Execute command
AT+CUSD = <n>,[<str>]
Enables /disables the unstructured service data reporting.
Parameters:
<n>: is used to disable/enable the presentation of an unsolicited result
code: +CUSD: <m>[,<str>,<dcs>] to the TE.
<n>:
<n> = 0 - disable the result code presentation in the DTA
<n> = 1 - enable the result code presentation in the DTA
<dcs> indicates which alphabet is used (Data Coding Scheme),refer to
command Select TE Character Set +CSCS
<str> - USSD-string (when <str> parameter is not given, network is
not interrogated):
- if TE character set other than "HEX": ME/TA converts GSM
alphabet into current TE character set according to rules of GSM
07.05
- 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 ? (GSM 23) is presented as 17 (IRA 49 and 55))
-if<dcs> indicates that 8-bit data coding scheme is used: ME/TA
converts each 8-bit octet into two IRA character long hexadecimal
number (e.g. octet with integer value 42 is presented to TE as two
characters 2A (IRA 50 and 65))
<m>:
<m> = 0 - no further user action required, hence network initiated
USSD-Notify, or no further information needed after mobile initiated
operation.
<m> = 1 - further user action required, hence network initiated
USSD-Request, or further information needed after mobile initiated
operation
<m> = 2 - USSD terminated by the network
<m> = 3 - other local client has responded
<m> = 4 - operation not supported
<m> = 5 - network time out
Note: only mobile initiated operations are supported.
Warning: In case of successful mobile initiated operation, DTA waits
the USSD response from the network and sends it to the DTE before
the final result code. This will block the AT command interface for
the period of the operation.