[SIPForum-discussion] Busy Lamp Field (BLF) and Presence

[Blake Coleman]

I had a hard time trying to find documentation on this too.

I dont have a trace. I could do one on Monday if nobody else has one.

I could also send my polucom config too.


~Blake

On Nov 29, 2008, at 12:23 AM, "Vivek Batra" <Vivek.Batra at Matrixtelesol.com 
 > wrote:

> Hi Blake/ Andrea,
>
> Do you have any ethereal trace for the same since I do not find any  
> standard for BLF OR please recommend the path that how to test this  
> feature.
>
>
>
> Regards,
>
> Vivek Batra
>
>
>
> From: Blake Coleman [mailto:blake.coleman21 at gmail.com]
> Sent: Saturday, November 29, 2008 2:44 AM
> To: Vivek Batra
> Subject: Re: [SIPForum-discussion] Busy Lamp Field (BLF) and Presence
>
>
>
> I have tested this. It uses a subscribe SIP messages to notify the  
> phone monitoring other device.
> The best way to use this feature is via SIP with TCP support.
>
>
> ~Blake
>
>
> On Nov 28, 2008, at 4:27 AM, "Vivek Batra" <Vivek.Batra at matrixtelesol.com 
> > wrote:
>
>> Hi,
>>
>> Anyone has idea about the functioning of BLF (Busy Lamp Field) in  
>> IP Phone. How the central entity (B2BUA) updates the IP Phone about  
>> the status (viz Ringing, Idle, Busy) of other numbers which IP  
>> Phone wants to monitor? Does it works using SUBSCRIBE/ NOTIFY  
>> mechanism?
>>
>> Is BLF feature same as of *Presence*?
>>
>>
>>
>> Best Regards,
>>
>> Vivek Batra
>>
>
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>
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