[Freeswitch-users] What's differents with "session" and "channel"?

[Justin Unger]

Tony,

Thanks for clearing this up, I was curious about the distinction myself.

On 8/31/06, Anthony Minessale <anthmct at yahoo.com> wrote:
>
> Essentially the session is the high level entity that represents an
> outside connection and the channel is an
> object inside the session that is a collection of the higher level
> components of the call.
>
> see http://www.freeswitch.org/docs/structswitch__core__session.html
>
> At this point channel is just a struct inside session that shows you
> things you are allowed to safely play with.
>
> Think of it like C++ as if channel is a class based on session as a base
> class.
>
> The switch_channel.c api has no idea what a session is and the
> core_session api has no idea what a channel is they
> only know they have an opaque pointer to each other to use api calls on
> when the time comes.
>
> The session contains all the low level things like access to memory pools
> and the I/O routines where the channel
> has things like channel variables and is the main entitiy that travels in
> the state machine and passes messages and dtmf around.
>
> So the short answer is that it's purely asthetic for the sake of a
> clean API.
>
>
>
>
> Anthony Minessale II
>
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>
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>
> ----- Original Message ----
> From: will <will at camangi.com>
> To: freeswitch-users at lists.freeswitch.org
> Sent: Wednesday, August 30, 2006 3:35:07 AM
> Subject: [Freeswitch-users] What's differents with "session" and
> "channel"?
>
>  I am confused "session" with "channel" in FreeSwitch.
>
> A channel is a connection which brings in a call to the FreeSwitch.
>
> Once a call is established, it is named "session".
>
> So multi session could exist in one channel, am I right?
>
>
>
> Will
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