[Asterisk-Dev] Adding a new channel

[Ashhar Farhan]

hello all,

i have been using asterisk for over a year now in our voip network.
at the moment, we are using our SIP bridge to talk to asterisk however, we 
are interested in writing a channel what can directly work with our 
lightweight telephoney protocol 
(http://www.voip-info.org/tiki-index.php?page=LTP).

can someone point me to the documents, headers of relevance? i understand 
that it requires developing a module. i also understand that multiple 
calls of a given protocol are handled by the same module instance.

i have the source code that i can compile. i am looking into the simpler 
channels like oss (btw, i didn't find the source file for IXJ in the 
latest tarball).

1) what are the public functions to be implemented?
2) how is media and signalling handled?

- farhan