config FREETZ_PACKAGE_RTPPROXY bool "rtpproxy 1.2.1 (binary only)" select FREETZ_LIB_libpthread default n help The Sippy RTPproxy is a high-performance software proxy server for RTP streams that can work together with SIP Express Router (SER), OpenSIPS, Kamailio, Sippy B2BUA or reSIProcate B2BUA. The main purpose of RTPproxy originally had been to make the communication between SIP user agents behind NAT(s) (Network Address Translator) possible. Several cases existed when direct end-to-end communication is not possible and RTP streams have to be relayed through another host. The RTPproxy can be used to setup such a relaying host. WWW: http://b2bua.org/wiki/RTPproxy