Download of ptlib-2.12.5-src.zip (ptlib-2.12.5-src.zip ( external link: SF.net): 7,162,911 bytes) will begin shortly. If not so, click link on the left.
Open Phone Abstraction Library (OPAL) is a C++ multi-platform, multi-protocol library for Fax, Video & Voice over IP and other networks. Also included is the Portable Tool Library (PTLib) which is a C++ multi-platform abstraction library and collection o
