Methodology

Where the numbers come from

Each plan row is tagged vendor 2026-11-10 (we read the vendor's own pricing page that day) or third-party 2026-10-02 (a reading by Zinng or Receptionist Report that we have not re-confirmed). Those two lists are written by parties with an interest: Zinng sells an AI receptionist and Receptionist Report earns affiliate commissions. We say so wherever we use them.

Automatic price check

For each vendor pricing page we load the text with a browser, after reading the site's robots.txt. If robots.txt disallows the page we do not fetch it (0 products). We then look for the price strings we recorded. "Confirmed" means every string appeared. It does not prove the plan rules, only that the prices are on the page.

How the simulator works

• Spam share removes calls from the bill only where the vendor or a named reviewer says spam is free. Otherwise every call is billable and the result is marked "Spam counted".
• Per-minute plans use calls × minutes. Per-call plans use billable calls. Per-unique-caller plans use billable calls × (1 − repeat share).
• For each product we pick the cheapest published plan, adding extra usage at the published rate. If the volume is above every plan and no overage is published, the product is left out and listed as unpriced.
• Rounding rules (per-second, per-minute-up) are rarely published. We show "not disclosed" and do not model them. Where a vendor states a rule, we quote it on the product page (Dialzara: tracked to the second; Rosie: rounded up to whole minutes).
• Totals are monthly, before tax, carrier fees and setup. Plans billed annually are shown at their per-month annual price and marked.

Status

Operating means the vendor site loaded and showed the product on the check date. Acquired, shut down and exited come from the source named on each page. Where a third party says a product is gone and the vendor site disagrees, we show both.

What we do not do

We do not call the products or test voice quality. RankDude publishes call tests; we do not copy them. We do not sell ranks or "verified" marks.

Listings left out

Enterprise-only products with no public price (five named by Zinng) are not listed.