Lingo Alternatives

White-label VoIP Softphone with WebRTC and Auto-provisioning

PhonerLite enables your PC to use it for internet telephony (VoIP , Voice over IP, SIP).

Work smarter, not harder. Save 1 day/week with free customizable workflows. Get access to 40+ workflow templates such as Employee Recognition & Engagement. Simplify your day-to-day workflows, increase team productivity & add simplicity to your work.

Try for free freemium

tomeko.net/software: SIP client for Windows.

Desktop client for Google Hangouts

SessionTalk Desktop Softphone is a feature rich SIP Client for Windows devices with Video, Messaging, Push Notifications, Encryption, Dial Plan, Call Transfer and Call Recording.

Application and Data, Collaboration, and Web and Video Conferencing

Open Source

Softphone for VoIP, CAPI und TAPI.

Online Sync and File Sharing

Open Source

Telegram is a messaging app with a focus on speed and security. It’s superfast, simple and free.

Open Source

VoIP and video calling, messaging and presence - all from your computer desktop with the award-winning Bria 5 softphone client.

Comwave is a state-of-the-art communication service and rich solution providing a platform that is designed for modern businesses to streamline their growth with an agile approach.

Astian Spika is an instant messaging service focused on speed, security and productivity. With great differences such as integration with Astian Cloud, support for video calls, calls among other features.

WhatsApp Messenger: More than 1 billion people in over 180 countries use WhatsApp to stay in touch with friends and family, anytime and anywhere.

free