Is there\'s anyway I can implement VOIP Client using Ionic Framework ? Theres a SDK for the VOIP but regarding the connection and everything, is it possible or should I go n
You have three options:
Option 3 is not recommended(I agree with points @Ricconnect made in his answer).
If you choose option 1 or 2, you can use existing libraries, e. g. Twilio mobile client. And you can then connect the native library to your app(option 1) with phonegap plugin(or you create your own connector).
My recommendation would be option 1 and I would also suggest you also read this post(written by the Author of before mentioned plugin).