Host a number
Open Voice Shield checks whether telecom routes deliver caller ID intact by calling real numbers in real countries. If you own a working number in Africa, the Middle East or Asia, point it at us and it becomes one of those numbers: every check that reaches it credits US$0.15 to your balance. Setup takes minutes and one phone call, with nothing to install.
Why your number
A caller ID check proves what a route delivers by calling a number the platform holds in the destination country and reading the caller ID that arrives. Coverage is only as wide as the numbers we hold. Operators ask for countries every week that no number provider sells into. You already have the number.
Carriers, ISPs, call centres, resellers and individuals with a working mobile, landline or toll-free number they can route. Kenya, Nigeria, Ghana, Egypt, Saudi Arabia, the UAE, Pakistan, Bangladesh, India, Indonesia, the Philippines: wherever wholesale routes terminate and caller ID goes missing.
A number whose calls you can point at a SIP host, which most DID providers, carriers and PBXs allow in their routing settings, delivering plain G.711 audio. You need no hardware, software or port forwarding.
US$0.15 per check that reaches the number, whatever the check's verdict, on your balance as it happens, with a per-number history of uses and earnings. Withdraw on request.
How it works
In the portal, open Host a number. Enter the number in international format, its country and its kind. It is enrolled at once, waiting to be pointed.
The page shows where: our SIP host, port 5060, UDP or TCP, and the source address to allow. Set that as the destination for the number in your carrier's or PBX's routing.
Press I've pointed it and call the number from any phone within 15 minutes. We answer with a short announcement, show you the caller ID we received, and the number goes live. From then on it earns.
On the line
Money
US$0.15 per check that reaches your number
Paid whatever the verdict: if a route mangles the caller ID, that is the route's fault, not yours, and you are still paid for the call. Nothing is paid for a check whose call never arrived, which is what keeps everyone honest about pointing.
Added to your balance as it happens
Each check adds its credit to your account balance the moment it completes, the same balance that pays for calls, analysis and checks, so there is nothing to claim or transfer. Billing shows every credit. The Host a number page totals uses and earnings per number. To take earnings out as cash instead, write to support.
Agents and scripts can do all of this too: the REST API and the MCP tools host_number, test_hosted_number and list_hosted_numbers do what the page does. Setup guide.
Questions
A working mobile, landline or toll-free number that you own and can route: calls to it must be deliverable to a SIP address you choose. Numbers in Africa, the Middle East and Asia are the most wanted, because that is where customers ask for coverage, and any country is welcome.
US$0.15 for every caller ID check whose call reaches your number, whatever the verdict of the check. It is added to your Open Voice Shield account balance the moment each check completes, the same balance that pays for calls and checks, so there is nothing to claim. Cash payouts are arranged with support.
Short calls, about 12 seconds, placed by other customers' routes as caller ID checks. The platform answers each one with a brief announcement and reads the caller ID that arrived. Calls never overlap on one number, and the number is only called while a check holds it. Any other call to it is refused.
No. You need a number whose calls you can point at a SIP host, which most DID providers, carriers and PBXs allow in their routing settings, and nothing is installed.
You press "I've pointed it" and call the number from any phone within 15 minutes. The platform answers with a short announcement and shows the caller ID it received. That one call proves the pointing and makes the number live.
A number that gets no call on three checks in a row is paused automatically, so nobody's check is wasted on it, and you are told. Fix the pointing and test it again. It goes live on the next call.
Yes, any time, from the portal: pause keeps it enrolled but out of the pool, and remove takes it off the platform. A number cannot be removed in the seconds a check is using it.
Yes. The REST API and the MCP tools host_number, test_hosted_number and list_hosted_numbers do what the page does.