We are a startup and plan to launch a push to talk app for Android.
Need SIP and node.js experts with deep domain expertise in developing PTT apps based on SIP.
Development partner will need to build the app end-to-end including the server side work for a robust, scalable and well-coded app.
Closest reference apps would be zello, voxer and similar types.
Please help in connecting with the right SIP partner/teams for this project.