User`s manual

Command Reference Manual
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3.2.3.18 –STE= - Set Telephony Extension
This command enables/disables Line-In-Use and Extension Pickup/Remote Hangup Detection.
Syntax
-STE=<value>
Defined Values
<value> Decimal number corresponding to the selected option.
0 Disables Line-In-Use and Extension Pickup/Remote Hangup Detection. (Default.)
3 Enables Line-In-Use and disables Extension Pickup/Remote Hangup Detection.
4 Disables Line-In-Use and enables Extension Pickup/Remote Hangup Detection.
5 Enables both Line-In-Use and Extension Pickup/Remote Hangup Detection.
Result Codes
OK <value> = 0-3.
ERROR Otherwise.