Thanks for the explaining, very clearly! _____ From: Anthony Minessale [mailto:anthmct@yahoo.com] Sent: Thursday, August 31, 2006 7:18 PM To: freeswitch-users@lists.freeswitch.org Subject: Re: [Freeswitch-users] What's differents with "session" and"channel"? 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 FreeSWITCH http://www.freeswitch.org/ ClueCon http://www.cluecon.com/ AIM: anthm MSN:anthony_minessale@hotmail.com JABBER:anthony.minessale@gmail.com FreeSWITCH Developer Conference sip:888@66.250.68.194 iax:guest@66.250.68.194/888 googletalk:freeswitch@gmail.com pstn:712-432-7800 ----- Original Message ---- From: will <will@camangi.com> To: freeswitch-users@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 _______________________________________________ Freeswitch-users mailing list Freeswitch-users@lists.freeswitch.org http://lists.freeswitch.org/mailman/listinfo/freeswitch-users UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users http://www.freeswitch.org <http://www.freeswitch.org/>