Having used just about every single VoIP on the market over the past decade, Dialpad is the clear innovator in the space.

So much in-fact that I personally use Dialpad as my professional relationships number (work/angel investing/networking). This is because the mobile app actually feels like a modern SMS app, and is the most stable of the bunch.

The added perk is that I've integrated Dialpad with our CRM (Copper) so all texts and calls automatically log into the CRM (and even automatically create new leads in the CRM if the number doesn't yet exist in our CRM).

You'll see software like RingCentral (the 800lb gorilla in the space) claims to "integrate" with everything, but it doesn't integrate as you'd actually like it to (it's just marketing-speak), and the desktop + mobile apps are incredibly outdated on all fronts.

There's more modern VoIP solutions on the market like Aircall and JustCall, which do have better "native integrations", although they pale in comparison to the UI/UX of Dialpad + have no AI intelligence features like Dialpad does (sentiment analysis, AI call review, etc.).

If you're unable to justify the investment into a custom integration with Dialpad, you'll probably be better off with Aircall or JustCall. Although, if you're interested in using the best tool in the space (clear leader) and are open to investing in a proper integration with your CRM, Dialpad won't let you down.