Nextiva Office Alternatives

RingCentral is the leading provider of cloud-based communications and collaboration solutions for small business and enterprise companies

Open Source freemium $19.99 / Monthly (All-in-One Phone, Team Messaging, and Video Conferencing.)

Easy to use Phone System with World-Class Support

paid $14.0 / Monthly

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)

Cloud Telephony delivers automated telephone applications to any phone, any place, anytime.

Predictive Call Center, Voice and Text Broadcasting app

Use your iPhone, iPad or iPod touch to make and receive calls using your 8x8 Virtual Office phone...

An open source telephony switching and private branch exchange service for Linux.

Open Source

Switch is a cloud-based phone system built for Google Apps users.

Line2 adds a second phone number or complete cloud business phone system to smartphones & computers that's robust yet affordable. Buy online or get a custom quote.

Digium offers IP phones, business phone systems, such as Switchvox IP PBX, and custom communications solutions for Asterisk.

The Cloud Phone System of choice for modern sales and support teams. We help end clueless conversations by adding context to every call.

paid $30.0 / Monthly

MyOperator is a cloud-based call management system for voice communication purposes.

paid Free Trial $10.0 / Annually

Grasshopper enables entrepreneurs to build a virtual office that connects callers to employees, wherever they are.

Grow your business with virtual phone numbers, IVR, voice broadcasting, mass text messaging services and power dialing.