Telular SX4D - Manual (Page 29)

Phonecell Operation - continued
All Incoming Call Barring:
On activation all incoming calls are barred; on deactivation all call
barring is disabled.
Activate: * 353 * Password * TeleService # <Send>
Deactivate: # 353 * Password * TeleService # <Send>
Unstructured Supplementary Services:
Allows a user and a PLMN operator-defined application to communicate in a way
that is transparent to the terminal and to intermediate network entities.
“any characters defined in GSM 03.08 Default Alphabet” # <Send>
or
“1 or 2 characters defined in GSM 03.08 Default Alphabet” # <Send>
SX4D GSM 900 • SX4D GSM 1800 28 U SER M ANUAL