TB30s SIP Administrator Guide v1.3 Page 92 of 259
• Server-to-phone scenarios : the proxy captures the SUBSCRIBE, does
not forward it and sends state changes as the body of a NOTIFY on behalf of
the phone. Asterisk Server does this.
The "<state>early|confirmed|void</state>" in the received NOTIFY msgs
determines the LEDs activity.
• If the line on the extension rings, the programmable key LED on the phone
blinks. Related state is early.
• If the line on the extension is busy, the programmable key LED on the
phone is steadily lit. Related state is confirmed.
• If the programmable key LED on the phone is off, then the programmable
key can act as a speed dial key for the same supervised destination number.
Related state is void (state not provided), or terminated.
Other tags could be supported in future releases.
User interaction
In idle mode
Pressing a key whose LED is off ( phone in idle mode, state void ) performs
a call to the corresponding phone.
Pressing a key whose LED is on (phone busy, state confirmed) performs a
call to the corresponding phone, a normal call.
Pressing a key whose LED is blinking (phone ringing, state early)
performs a call pickup of the corresponding phone.
During a call or conference
Same behaviour as in idle mode except it is in a second call (or third…). This
would be equivalent to the user pressing the softkey “New Call” and placed a
call to that extension.
BLF Configuration
Web GUI
The setup of the function keys can be done using the TB30 web interface.
First, if you are going to use any of the function keys in the phone instead of
an extension module, you need to reconfigure the max number of lines in
Advanced Advanced. In this example it has been set to 5, which leaves
room for 5 supervision lines:
To configure the function keys, visit Advanced Call features and click on
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