diff --git a/README.md b/README.md
index df829c48..92d13963 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,8 @@
-This is very basic Android Studio baresip project.
+This is very basic Android Studio project implementing baresip
+(https://github.com/alfredh/baresip) based SIP User Agent.
 
-Includes PCMU/PCMA and opus codecs as well as ZRTP media encapsulation.
+Currently includes TLS transport, PCMU/PCMA and opus codecs, as well as
+ZRTP and (DTLS) SRTP media encapsulation.
 
 The static libraries and include files in distribution directory have
 been produced using https://github.com/alfredh/baresip-android.
diff --git a/app/src/main/cpp/CMakeLists.txt b/app/src/main/cpp/CMakeLists.txt
index 31d28db8..406173f0 100644
--- a/app/src/main/cpp/CMakeLists.txt
+++ b/app/src/main/cpp/CMakeLists.txt
@@ -40,6 +40,10 @@ add_library(lib_opus STATIC IMPORTED)
 set_target_properties(lib_opus PROPERTIES IMPORTED_LOCATION
         ${distribution_DIR}/opus/lib/${ANDROID_ABI}/libopus.a)
 
+add_library(lib_g7221 STATIC IMPORTED)
+set_target_properties(lib_g7221 PROPERTIES IMPORTED_LOCATION
+        ${distribution_DIR}/g722_1/lib/${ANDROID_ABI}/libg722_1.a)
+
 add_library(lib_bn STATIC IMPORTED)
 set_target_properties(lib_bn PROPERTIES IMPORTED_LOCATION
         ${distribution_DIR}/bn/lib/${ANDROID_ABI}/libbn.a)
@@ -69,6 +73,7 @@ target_link_libraries(baresip
                       lib_ssl
                       lib_crypto
                       lib_opus
+                      lib_g7221
                       lib_zrtp
                       lib_bn
                       z