About: Asterisk is a software implementation of a telephone private branch exchange (PBX) that turns an ordinary computer into a voice communications server. 1.13 series release (Long Term Support).
Fossies Dox: asterisk-13.13.1.tar.gz ("inofficial" and yet experimental doxygen-generated source code documentation)
The Objective Open H.323 for C (ooH323c) protocol stack is an open source applications program interface (API) for building H.323 based applications. The stack implements Q.931/H.225 call signaling procedures, H.245 logical channel operations, and Registration, Admission, and Status (RAS) messaging for Gatekeeper communications.
The categories of user functions provided are as follows: