[Telepathy] How do I receive channels in an observer client?

[Simon McVittie]

On Tue, 14 Jun 2011 at 10:11:06 -0400, Mystilleef wrote:
> Yet, I can't receive any media channels.
...
> I have _neither_ an approver or handler client implemented
> yet. Does this matter?

I don't know exactly what you mean by "can't receive", but if you mean "my
contacts see me as not callable and/or can't call me" and you're on XMPP,
that may be because it's the Handler that tells Gabble which NAT traversal
mechanisms it understands. Without a Handler, Gabble is aware that it doesn't
support any NAT traversal mechanisms, and tells your contacts that it doesn't
support any; your contacts interpret that as "can't be called".

Another possibility is this MC bug:
<https://bugs.freedesktop.org/show_bug.cgi?id=29022>
in which channels for which you don't have a Handler aren't given to Observers
either, on the basis that MC is about to close the channel anyway. I think
that's a bug - it should tell the Observers, wait for them all to respond,
*then* close the channel - but the patches to fix it haven't been merged yet.

> P.S. The only time I can receive media channels is when I
> have Empathy running.

While it's running, Empathy provides a StreamedMedia Handler.

You're not going to be usefully callable unless you have some sort of Handler
for the channel, so if you don't want to use the one from Empathy, you'll
have to implement another. As a "quick hack" first implementation, it could
just accept the channel and not do anything with it...

    S