Editorial policy & disclosures

We have no material ownership relationships with vendors listed in the directory.

Ownership and commercial relationships do not affect vendor facts, comparison data, similar-product selection, source selection, or correction decisions. Vendor pages with an ownership relationship carry a disclosure at the top of the page.

Vendors can buy placements on directory and category pages, and paid placements are visibly labeled. Sponsorship never changes vendor facts, feature values, buying notes, fact verification, the order of Similar products, comparison conclusions, or which sources we use.

CallCenterAdvisor may receive compensation if you connect with a provider through our expert-advice service. We say so next to that call to action.

Vendor pages are structured fact sheets, not reviews. Every published fact comes from one canonical record and points to the evidence we accepted for it. We prefer a smaller number of well-sourced facts over a large feature matrix filled with assumptions.

Each fact records who makes the claim:

• Vendor states: the vendor publicly claims it (pricing pages, documentation, trust centers).
• Third-party record: an independent registry, such as the Visa Global Registry of Service Providers.
• Government record: a government database, such as the FCC Robocall Mitigation Database.

We never publish conclusions like “TCPA compliant” or “HIPAA certified.” We show specific facts instead: DNC tools, Reassigned Numbers Database support, whether a Business Associate Agreement is available, or an FCC listing.

Unknown means we have not established a fact yet. Not publicly disclosed means we checked the appropriate public sources (for example the pricing page, FAQ and sales terms) and the vendor does not state it. We never convert missing evidence into “No”.

Registry records appear only when we find a positive match. Software vendors are often not required to file with the FCC, so absence is never shown as “Not listed,” and absence from the Visa registry is never shown as a PCI conclusion.

Checked means an automated or manual process accessed the source. Verified means a CallCenterAdvisor editor reviewed the source and accepted the fact. Machine extraction confidence is not verification.

Facts are researched by an AI agent that records the source and a quote for each one. A second, separate AI agent then re-fetches every source and approves, corrects or rejects each fact. It only sees the claims, not how the first agent reached them. Facts approved this way are labeled as cross-checked by a second AI agent, not as Verified.

Pricing, minimum seats, free trials, demos, contract terms, implementation and telecom fees, and paid add-ons are published only after that second review or an editor's verification. Extraction alone may not publish buying facts, resolve conflicts between sources, or change an approved buying fact after a source changes; those changes wait for a new review.

We check important sources for meaningful content changes roughly weekly. A relevant change triggers re-extraction and, where required, human review. If a previously supported claim disappears from its source, the fact is marked as under review rather than switched to “No”. Independent of source changes, facts are fully revalidated on this schedule:

We keep an audit history of every change: old value, new value, reason, evidence, approver and date.

We do not scrape G2, Capterra or other review platforms, and we do not republish review text. Vendor pages link out to those platforms. An editor may record a dated rating observation, which is labeled with the date it was manually checked and is never refreshed automatically. Third-party ratings are not emitted as rating markup for search engines.

Every vendor page has a “Suggest a correction” link. Corrections enter a review queue and never overwrite published facts directly. We prefer public supporting evidence, including for corrections requested by vendors. Questions can also go to our contact page.