Cisco Webex Calling

4.1 (1850 reviews)

Cisco Webex Calling represents the evolution of enterprise telephony, merging decades of Cisco's networking expertise with modern cloud communications. As a VoIP solution born from one of the world's most trusted infrastructure companies, it delivers phone system capabilities that seamlessly integrate with the broader Webex collaboration ecosystem, making it particularly compelling for organizations already invested in Cisco infrastructure or those prioritizing security and reliability above all else.

RingCentral

4.3 (4200 reviews)

RingCentral has established itself as the enterprise workhorse of VoIP solutions, built for organizations that need a communication platform capable of scaling from small teams to thousands of users without missing a beat. What sets it apart is its all-in-one approach—this isn't just phone service, it's a complete unified communications ecosystem that brings voice, video, team messaging, and SMS together in one cohesive platform.