The Sinch SDK for iOS 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
Application developers have integrated helpful bots and scripts into chat apps. However, there is one channel, with the greatest number of users, no one has been able to reach: simple SMS. This article shows you how the Bandwith messaging API allows developer to integrate with group message chats.