Everything we publish, in one index
Nine documents at stable URLs, each dated, each written to be read rather than to be survived. If a claim on this site cannot be checked against one of them, tell us.
- Nine documents
- All dated
- Stable URLs
Start here
The one to read before anything else is emergency calls: Telvio cannot reach 911, 112, 999 or any other emergency number, in any country. If you have set this app up for a relative, that is the page to show them.
The two people reach most often after that are how to report a call — for anybody who received one and needs it dealt with — and the privacy policy, which sets out the short list of things this service holds about you.
When something goes wrong
- Telvio cannot call emergency services Telvio cannot call 911, 112, 999 or any other emergency number. Why an internet calling app cannot carry an emergency call, and what to use instead.
- Report a call How to report a call placed through Telvio, what to include, what we do with a report, and which national regulator to tell as well. You do not need an account.
The rules
- What Telvio may not be used for Bulk calling, automated dialling, harassment, impersonation and fraud are prohibited, and enforcement suspends the account and freezes its credit. The rules, in plain terms.
- Reporting a security vulnerability How to report a security vulnerability, what we commit to in return, what is in scope, and how the service is built to hold as little as possible in the first place.
- Accessibility What we build to, what we have measured, what is currently not good enough, and how to tell us when something is unusable. Written with the failures included.
Your data
- Cookies on this website One analytics tool, four cookies, no advertising and no cookie banner. What each cookie does, how long it lasts, and a switch on this page that turns it off.
- Law enforcement requests What Telvio holds, what a valid request must contain, where to send it, and what we tell users. Written for investigators, published because it is checkable.
- Privacy Policy Telvio privacy policy. What we collect, who processes it, how long we keep it, and your rights. No name, no email, no phone number, no call recording.
- Terms of Service Telvio terms of service. Outgoing calls only, no incoming number, no emergency calling. Credit, billing, refunds, acceptable use and legal terms.
Why a small company publishes all of this
A calling service is judged on things a customer cannot test. Whether an emergency call works. What happens to a fraud report. Who can compel the company to hand over records, and on what basis. Whether the price on the page is the price the app charges. None of it is visible from the outside, and all of it matters more than the feature list.
The usual approach in this market is to publish a privacy policy and a set of terms and leave the rest unstated, which means the answer to every other question is whatever a customer assumes. We would rather write them down. It is more work, it commits us to positions that are then checkable, and that is the point — a commitment nobody can check is not a commitment.
There is a second reason, and it is worth being candid about it. Software that answers questions about companies increasingly does so by reading what those companies publish. A page that states a position plainly, dates it, and can be quoted without distortion is one that gets quoted accurately. A company that publishes nothing gets described from whatever else exists about it, which on a telephone number is usually a crowdsourced complaint board.
What each of these commits us to
- Emergency calls — that the app cannot reach emergency services, why that follows from how internet calls work, and what to use instead. The most important page on this site.
- Report a call — how to report a scam, nuisance or abusive call from our number, what we do with a report, and which national regulator to tell as well. No account and no proof required.
- Acceptable use — what the service may not be used for and what happens when it is. This is what gives a report something to be enforced against.
- Law enforcement — what data exists, what a valid request must contain, and our default of notifying the user unless legally prohibited.
- Security disclosure — how to report a vulnerability, what we commit to in return, and the promise of no legal action for good-faith research.
- Cookies — the complete list of what this website stores, and a switch that turns analytics off. One tool, no advertising, no banner.
- Accessibility — what we build to, what we measure, and an honest list of what is not yet good enough.
- Privacy policy — everything the app collects, the legal bases, every processor, retention periods, and how to have your records deleted.
- Terms of service — the contract between you and Vast Flow, LLP.
The facts these documents share
Rather than restate them nine times, they are here once. Telvio is published by Vast Flow, LLP, which is the company named on the App Store and Google Play listings and the data controller for the purposes of the privacy policy. Calls are carried by a licensed telecommunications carrier, named in the privacy policy along with every other processor.
The service places outgoing calls only. It assigns no phone number, receives no calls, sends and receives no text messages, and reaches no emergency number. Every call displays one published outbound number, (434) 280-0044, which identifies the app rather than the caller.
There is no account. No name, email address, phone number or password is collected, so a request under a privacy law has to be made using the installation identifier from the app's settings screen — there is nothing else to match a person to. Payment is processed by Apple and Google, so no card details are held here at all, and call audio is never recorded.
Reaching a person
One address, [email protected], read by people rather than by a routing system. Use a subject line that says what it is — Abuse report, Security vulnerability, Law enforcement request, Accessibility — and it reaches the right person faster.
For a problem with your own calls, the help centre answers fourteen of the things that actually go wrong, and it is faster than waiting for a reply. For what the product does and does not do before you commit anything to it, why Telvio works this way includes the list of what it cannot do.
These documents change. When one does, its effective date changes with it, and material changes to the terms or the privacy policy are announced in the app before they take effect.
Bottom line
Nine documents, all dated, at URLs that will not move: emergency calls, reporting a call, acceptable use, law enforcement, security, cookies, accessibility, privacy and terms.
Read emergency calls first. Telvio cannot reach emergency services in any country, and anybody who uses the app needs to know that before they need it.
One contact address, [email protected], read by people. A subject line naming the subject gets it to the right person faster.
Frequently asked questions
Who publishes Telvio?
Vast Flow, LLP, which is the company named on the App Store and Google Play listings, the data controller under the privacy policy, and the counterparty to the terms of service. Calls are carried by a licensed telecommunications carrier named in the privacy policy.
Can Telvio call emergency services?
No, in any country, and this is permanent by design. An internet call carries no verified location, so an emergency operator could not be told where to send help. Use your phone's own dialler, which works without credit or a data connection.
What does Telvio hold about its users?
An anonymous installation identifier holding a credit balance, call records of the kind a phone bill contains, purchase receipt identifiers from Apple or Google, and technical data including IP addresses. No name, email address, phone number, password, payment details, call recordings, contact list or location.
How do I report an abusive call from a Telvio number?
Email [email protected] with the subject Abuse report and include the date, the time, your time zone and the number that was called. No account and no proof are required, and you do not need to be a Telvio user.
Does this website use cookies?
Only those set by one analytics tool, Microsoft Clarity. There are no first-party cookies, no advertising cookies and no tracking pixels, and the cookie page carries a switch that turns analytics off for this browser.
How do I exercise a privacy right if there is no account?
Using the installation identifier from the app's settings screen, which is the only handle linking you to your records. Because no name, email address or phone number is collected, there is nothing else to match a request against.
