The Sinch SDK for Android lets developers add voice calling and instant messaging capabilities to their iOS based mobile apps. The SDK handles signaling and audio management. In addition it offers support for:
App to app calling
App to phone calling
Instant messaging to single and multiple recipient
Whispir, a platform that enables its users to send messages to various channels at the same time, provides the Whispir API designed to allow developers to embed any feature of the platform into any cloud-based web application. Users can send these high-volume messages that are tailored and targeted for each channel and recipient via SMS, voice, email, web, mobile, or social media.
Twilio has announced the launch of a public beta for its Recording Composition API. The Recording Composition API allows developers to transcode, combine and mix Group Room video recordings, which are stored in separate audio and video tracks, programmatically, eliminating manual complexity.