asterisk users - May 2011 - Asterisk, bicolor BLF and DEVSTATE

Hi,

1. You can now find several SIP harphones with bicolor BLFs (see Polycom,
Cisco, ...).
Is there a protocol which best describes how to use this bicolor BLD feature
?


2. I would like to map these BLFs to the following user activities :
- user is logged off:  no light
- user is logged in:   green light
- phone is ringing:    blinking light
- user is on call:       red light

It seems that Asterisk DEVICE_STATE function can't be mapped with this
bicolor feature.
So how could this 4-states BLF be implemented ?
Any suggestion ?

Regards
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On 3 May 2011, at 13:34, Olivier wrote:
> It seems that Asterisk DEVICE_STATE function can't be mapped with this
bicolor feature.
> So how could this 4-states BLF be implemented ?
> Any suggestion ?
The handset is what maps the colours to the states. You can't send a colour
in SIP. You could create a list of all the possible device states, and see which
produce the desired colours on phones. I know the Cisco SPA series does let you
edit the colours for different device statues. Might be worth seeing if other
phones do the same.

S