[Asterisk-Users] Presence

[Adam Hart]

Duane wrote:

> William Suffill wrote:
>
>> They modified iax to include the presence packet but only works on their
>> customized firefly network. I was thinking along the lines of a software
>> app for those of us who use hardware phones but still want to keep TXT
>> chat and presence and perhaps integrated into 1 of the iax soft phones
>> as well to provide a full solution.
>
>
> Question is then, how well does their system work? Already have an 
> IAX2 compatible soft phone with that stuff in it, why not make use of 
> the fact and just work out what needs to be sent to their client...
>
The protocol is quite simple, it's all text messages. S for subscribe to 
a user's events, T for send a text message

I was half way through discussing this with Mark and more specifically 
adding it to IAX (along with some other cool stuff). Unforunately, I was 
told to do another project asap but that'll be released next week (stay 
tuned).
My main concern with IAX were you don't know when someone goes offline 
until their reg expires - no acceptable in presence. Our solution was to 
keep the registration session open. Keeping the registration session 
open actually helps everything else fall in place, you can just send 
messages over that session without requiring setting up a channel, auth 
and tear down for each message.

-Adam