From d8e68b90aa8631140384d672678dff6fd9dc730f Mon Sep 17 00:00:00 2001 From: Stefan Sayer Date: Fri, 14 Jan 2011 01:36:49 +0100 Subject: [PATCH] fix typo --- doc/Readme.sbc.txt | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/doc/Readme.sbc.txt b/doc/Readme.sbc.txt index e027b5af..c7f1f463 100644 --- a/doc/Readme.sbc.txt +++ b/doc/Readme.sbc.txt @@ -285,7 +285,7 @@ send RTP media to SEMS. SEMS then relays the RTP packets between the two sides. RTP relay can be enabled by setting enable_rtprelay=yes -The SBC detects if UAs indicate that they are behind NAT by setting a:direction=active +The SBC detects if UAs indicate that they are behind NAT by setting a=direction:active in SDP, and goes into passive mode until it receives the first packet from the NATed client, from which it learns the remote address. This mechanism is called "symmetric RTP".