Checkout the project from git
At the top level, run cmake:
cmake -G 'Unix Makefiles' \
-D BUILD_EXAMPLES=ON \
-D WEBSOCKETPP_ROOT=/tmp/cm1 \
-D ENABLE_CPP11=OFF .
and then make the example:
make -C examples/sip_client
Now run it:
bin/sip_client ws://ws-server:80
It has been tested against the repro SIP proxy from reSIProcate
http://www.resiprocate.org/WebRTC_and_SIP_Over_WebSockets