diff --git a/apps/sbc/CMakeLists.txt b/apps/sbc/CMakeLists.txt
index ba110fa9..f9083b8c 100644
--- a/apps/sbc/CMakeLists.txt
+++ b/apps/sbc/CMakeLists.txt
@@ -18,6 +18,7 @@ sbc
 src_ipmap
 sst_b2b.sbcprofile
 transparent.sbcprofile
+symmetricrtp.sbcprofile
 )
 
 INSTALL(PROGRAMS
diff --git a/apps/sbc/etc/transparent.sbcprofile.conf.cmake b/apps/sbc/etc/transparent.sbcprofile.conf.cmake
index b0e9121e..3356b07f 100644
--- a/apps/sbc/etc/transparent.sbcprofile.conf.cmake
+++ b/apps/sbc/etc/transparent.sbcprofile.conf.cmake
@@ -20,6 +20,16 @@
 #next_hop_port=5060
 # use next_hop for replies, too?
 #next_hop_for_replies=yes
+# outbound interface to use (interface ID)
+#outbound_interface=extern
+
+## RTP relay
+# enable RTP relaying (bridging):
+#enable_rtprelay=yes
+# force symmetric RTP (start with passive mode):
+#rtprelay_force_symmetric_rtp=yes
+# use symmetric RTP indication from P-MsgFlags flag 2
+#rtprelay_msgflags_symmetric_rtp=yes
 
 ## filters: 
 #header_filter=blacklist