CallFire PHP SDK by CallFire provides developers a way to integrate their applications and websites to the CallFire services, enabling users to communicate with their customers via text and telephoning. This SDK is written using PHP.
SimpleTexting, text marketing service, offers its full suite of text services via its SMS API. Developers can integrate SMS capabilities within third party apps to better engage customers. Whether developers want to send or receive texts, update contact lists, or take advantage of SimpleTexting's other features, the SMS API provides simple access to a robust service.
Popular messaging platform Slack today announced the beta launch of Shared Channels, "a new kind of channel that connects two separate groups, creating a common space for both sides to make use of Slack’s communication features and platform integrations when working together."