Calix Alternatives

NextPlane offers cloud-based, scalable unified communications federation service for the enterprise.

Turn your phone into a Walkie Talkie. Don't waste time on phone calls and voicemails.

VoIPstudio is an award-winning VoIP system that offers businesses of all sizes a scalable communication solution. It’s inexpensive, easy-to-use, offers a full suite of PBX features, and is fully integrated for CRM.

Try for free paid Free Trial $4.99 / Monthly (User)

Chat interoperability-as-a-service

Investis helps companies to use digital channels to increase revenue, enhance employee engagement and influence corporate audiences.

Chromacam is a tool that offers virtual green screen for web conferencing and presentations.

SightCall offers comprehensive real-time video APIs and Mobile SDKs that makes it simple to embed...

PanTerra provides cloud-based unified communication solutions for small and medium-sized enterprises.

Smart Communications enables companies to create, manage and deliver personalized communications to its customers and partners.

WebRTC is a free, open project that enables web browsers with Real-Time Communications (RTC) capabilities via simple JavaScript APIs. The WebRTC components have been optimized to best serve this purpose.

Open Source

Stratics Networks is an all-in-one platform for ringless voicemail drops, bulk SMS-DROPS, voice broadcasting and IVR surveys.

Cloud services for hotels, hostels and co-workings

Crystal Interactive offers audience engagement solutions for live events and conferences.

Topi connects people in a random world by giving serendipity a hand.