a go wrapper of gopjnath
wget http://www.pjsip.org/release/2.7.2/pjproject-2.7.2.tar.bz2
tar xjf pjproject-2.7.2.tar.bz2
cd pjproject-2.7.2
./configure --disable-sound --disable-video --disable-ssl
make dep && make && make install
```
cd cmd
go build
```
you can find how to use the export api in the cmd/main.go