On Thu, 2003-11-27 at 12:03, Mark Spencer wrote:Some brainstorm notes then:
Yea, cause I used both Kphone and Windows messenger, and they successfully registered (and subscribed i think) towards asterisk. Using Kphone I even get a online status on all other users on the asterisk but no interaction with status or IM. So maybe there is some quasi presence avaible? I think it would be a great tool to support IM/Presence. There is so much that can be done with such implementations.
SIMPLE could be added within chan_sip, but there is no mechanism within Asterisk to move text from one channel to another *without* the context of a call. *With* the context of a call, we definitely have such a thing (TEXT frames)
So what's a "call" for asterisk? * Something that's set up between two endpoints through the dialplan.
Simple can send messages within a call, like * A calls B with SIP (INVITE-ACK-ACK) * B sends a URL to A with SIMPLE within the SIP session
The problem that we have, if I understand Mark, is that Simple may also be used to send IM without setting up a SIP call (INVITE-ACK-ACK). Like the MWI SIP Notify message from Asterisk. Is that only generated in the relation to a SIP register?
Asterisk has some notion of presense (CLI> SIP show peers) but not detailed as the normal IM user wants: Presence with some attribute (atoffice, athome, atmistress etc).
To get SIMPLE to work within Asterisk, we'll have to: * Add SIMPLE support within the context of a call * Add a new session apart from a "call" - "notification" * Add some attributes to presence structure * Add a SUBCRIBE/ACCEPT mechanism - who may subscribe to my whereabouts? * Find programmers that can do this :-)
Do the other protocols, MGCP, IAX2, H.323 have any support for text messages?
/O
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