[asterisk-users] Polycoms and BLF

[Steve Davies]

2009/3/23 Jeffrey Phelps <jphelps at mjlm.com>:
> I’m trying to get the BLF to work correctly on my Polycom phones.  I have
> the buddy watch working correctly, but can’t get the BLF to change based on
> the state…
>
> Example:
>
> When an extension is ringing, I get the same ‘red light’ that I get when the
> extension is actually in use…
>
> I was wondering if anyone had any experience with getting the Polycom phone
> to differentiate between the different device states.
>
> Thanks,
>
> Jeff Phelps
>
> IT Support Specialist

The protocol that the Polycom's use to NOTIFY buddy state is based on
a Microsoft implementation. As far as I can tell, that implementation
has no "Early" state, and cannot therefore report Ringing.

Polycom also support RLMI for BLF type behaviour, which is a full
implementation, but this is not Asterisk compatible. There is a
partial patch to add this in the bugtracker, but I have not tried it.

If anyone knows otherwise, I would be interested to know it.

Regards,
Steve