When you say "most tech companies" are you referring to employers in the tech space, or specifically VoIP providers? Dialpad.com is pretty much still alone in the mobile-first, anti-Deskphone, WebRTC-preferred approach. The rest are still primarily geared towards desk phones, even RingCentral that has a very slick mobile experience.

Dialpad is definitely playing the long game here and will be the clear winners 10 years from now. I predict Amazon will acquire them in the next year or two.

More and more businesses are switching from on-premise telephony to cloud based hosted PBX. The addressable market is very large, latest estimates put it at 55+ million seats. That's before you consider the contact center market... just focus on getting to 500, then 2000, and so on. It's not difficult. 2000 seats bring you $50K MRC, and again if you know how to this right, especially coupled with intuitive self service UI to the end users, overhead is very very low. And the actual Telco costs are too tiny to even worry about. About 75 cents per user.

I thought about starting a "how to start a VOIP business" webinar or somethint.. its amazing how many are trying to create SaaS products in obscure fringe markets where the VOIP market is pure gold.