Calls on Slack - Make voice calls in Slack
Ottspott - Add a powerful phone platform to G Suite and Slack. Instant set-up, no long term contracts. Secure, global, scalable. Integrates seamlessly with your preferred business apps.
OpenPhone - Simplest way to own a business phone number
Yodel - Group photo and video sharing. Create stories with friends, join stories from around the world.
Houseparty - Brining empathy to online communication.
JustCall - The Cloud Phone System of choice for modern sales and support teams. We help end clueless conversations by adding context to every call.