Description: Asterisk is an open source communications software that allows you to build telephony applications and services. It supports voice over IP, video conferencing, voicemail, auto attendant, interactive voice response, and more. It can be used to build PBX systems, call center solutions, and other communications platforms.
Type: software
Pricing: Open Source
Description: Textra is a popular third-party messaging app for Android. It has a clean, customizable interface, supports SMS, MMS, and RCS messaging, has schedule message sending, private notifications, and lots of theme options.
Type: software