Operation Manual

ST2030s VoIP Business Phone
ST2030s SIP Administrator Guide v3.0 Page 130 of 308
and « Unregistered » . The service variable for DND supervision will be
discussed in next section.
Upon reception of a NOTIFY request, ST20xx update the lamp associated to
the supervised phone accordingly.
Implementation and configuration
Table below describes an overall ST20xx‟s behavior that is used for
implementation, based on the Dialog and Registration and DND
supervision of a same target:
DND
state
Registration
State
Dialog
state
Aggregated
state
Lamp state
When BLF Key
is pressed
Off
Registered
Void
Free
Off
Call initiate
Early
Ringing
Blinking fast
Call pick up
Confirmed
Busy
On
Call initiate
Unregistered
Any
Not available
Blinking slow
No action
On
Any
Any
Not available
Blinking slow
No action
If user presses the function Key:
 BLF Key is pressed in OFF state --> phone initiates a call toward the
supervised SIP-URI
 BLF Key is pressed in STEADY ON state --> phone initiates a call toward
the supervised SIP-URI
 BLF Key is pressed in BLINKING SLOW state --> NO action is taken
 BLF Key is pressed in BLINKING FAST (supervised phone is ringing)
state --> phone launches a call Pickup of the supervised phone
Call pickup is launched by initiating a call toward a service code that includes
the number to pickup. It can work with Soft Key or with Function key (user
orientated BLF)
For call pick up service, please refer to “ST20xx SIP New Features SG vx.62
P. 145  How to activate call Pick-up Service.
Remark:
If the status of the phone is in ringing, in communication and all others,
except idle, function key should remain inactive if the user presses them.
But, the supervision (LED blinking or other, including state change) should
remain active during call.