The Bandwidth iOS Mobile Client Objective-C SDK by Bandwidth provides users with the tools to add mobile VoIP calling to existing iOS applications. It also helps users to setup their own server-side application to support iOS VoIP clients.
The Bandwidth API allows users to make calls to get information about an account, get a list of transactions made on an account, as well as make calls for phone numbers, messages, calls, media, applications, errors, and other resources.
The Nexmo SMS API allows you to send and receive a high volume of SMS anywhere in the world. Once you get your virtual phone number, you can use the API to manage outbound messages and inbound messages. In this article, you will learn how to send and receive SMS messages with Node.js and Express.
Six APIs have been added to the ProgrammableWeb directory in categories including Mail, Application Development and Telephony. Highlights include SDKs and an API for Dronecode open source drone operation platform and an API for sending mail without going to the post office.