-See README for a list of required software. You don't need everything
-listed there. In particular, mp3, ogg vorbis and aac support is
-optional. Autoconf will detect what is installed on your system
-and will only try to build those executables that can be built with
-your setup.
+See REQUIREMENTS for a list of required software. You don't need
+everything listed there. In particular, mp3, ogg vorbis and aac, ortp
+support is optional. Autoconf will detect what is installed on your
+system and will only try to build those executables that can be built
+with your setup.