Three decisions before you offer phones.
The voice API providers won't surface any of them for you.
These guides are for the person at a vertical SaaS or vertical AI platform who has started hearing "who should we use for phones?" from customers. Before you pick a vendor, you'll decide whether your customers need real hardware, whose name ends up on the regulatory filings, and how their existing numbers move. One guide each.
They name real vendors, including our competitors. When another path is the right call, they say so.
Desk phones
Many of your customers want real handsets, not just calling in your app. Most voice vendors can't do that, and the ones that can differ enormously in how much work lands on you.
Guide 02Who is legally the carrier
White-label and carrier of record are different things, and the difference is whose name is on the filings. Most platforms find out afterward.
Guide 03Numbers and porting
Moving a customer's existing numbers is the part they're most afraid of. Here's how it actually works, why ports fail, and how long it takes.