DIDSMS
US eSIM: scan one QR code and your phone gains a US line, while your mainland number keeps receiving verification codes. Cloud IP PBX: give every team member a local number in whatever country they are in, from $12.90 per user per month.
US eSIM plans
US only for now — pick a tier.
All six tiers include unmetered hotspot and unlimited calls to 80+ countries; 10 GB high-speed, $25 per month.
Two business lines
Your phone gains a US line without pulling out the mainland one.
Whatever city your staff are in, customers dial that city’s number.
Why DIDSMS
No “industry-leading” language. Every line below is either verifiable or testable.
Keep the mainland card for calls and bank or WeChat codes; the US card handles data and local calls. No swapping, no second phone.
Order in your home country, get the QR code, load it into your phone. You have signal the moment you power on, no airport counter and no local registration.
When the high-speed allowance is gone you just slow down. The connection stays on and data is never billed separately. No surprise bills.
Balance deductions run as database-level atomic operations with optimistic locking, so high concurrency cannot over-charge or double-charge. Faulty orders are reconciled and refunded automatically.
24/7 human support. Enterprise customers get a named contact and a 15-minute first-response commitment.
Platform depth
In telecom, the product is not messing up. Here is what we built so it does not, and who provides the networks.
Freeze / commit / release is a full state machine, backed by atomic database operations.
Sliding-window TPS control so upstream quotas do not get blown out.
MQ-driven order timeout handling plus scheduled reconciliation as a second line of defence.
RSA + AES hybrid in transit; credentials are never stored in plaintext.
Every upstream interaction is persisted: traceable and exportable.
US local networks come from ENC Mobile, on T-Mobile or AT&T. Switchable after activation.
Partner programme
Rates, provisioning, reconciliation and billing are already APIs. You only decide who to sell to and at what price.
Your brand and your pricing, our supply. White-label portal, your own rate card, one consolidated monthly settlement.
Best for:MVNOs, virtual operators, vertical ISVs
Drop a ready-made plan picker onto your site and earn per conversion. No inventory, no support desk.
Best for:Travel creators, ticketing and insurance sites
Direct access to the plan catalogue, ordering, status look-up and reconciliation files, with async callbacks.
Best for:Platforms embedding telecom into their own system
Use cases
A number before you land, so sign-ups, bank accounts and ride-hailing all work; your mainland number keeps receiving family and school messages.
Use the number-keeping add-on when you visit home so the plan survives the trip, and pick it up unchanged when you are back.
Overseas warehouses and last-mile sites upload proof of delivery over a US data SIM instead of relying on store Wi-Fi.
Multi-country agents behind one switchboard; customers dial a local number and recordings feed QA.
Prototype note: the “customer stories + logo wall” block has been pulled — phase one has no attributable real customers, and invented quotes are the highest-risk form of false advertising. Restore it once we have authorisation and evidence (see copy.md 4.7).
What you can verify
US local mobile networks are provided by ENC Mobile, over the T-Mobile and AT&T public networks. Pick one when ordering, switch after activation. The price shown on the page is the published price.
eSIM is bought monthly with no contract; voice is billed per user per month, with annual optional. Both tax-inclusive and tax-exclusive invoices are available, and the rate card is downloadable.
Voice has a public status page and SLA compensation terms. Faulty orders are rolled back and refunded by the reconciliation job — you do not have to raise a ticket first.
FAQ
No swap. An eSIM is a virtual card written into your phone: scan a QR code and it coexists with the physical card you already use. Most phones from the iPhone XS onwards support it.
Phase one is US only. Other destinations go live as they open; you can leave an email to join the queue.
No. The switchboard runs in our cloud — use the app, the web softphone, or keep your existing SIP desk phones.
Yes. We run the carrier paperwork, and old and new lines run in parallel during the cut-over so no calls are lost.
eSIM takes WeChat Pay, Alipay and bank cards; enterprise customers can settle by wire transfer or on credit terms.
If voice availability falls below 99.99%, SLA pays out in service credit on a sliding scale, up to 100% of the month’s fee. eSIM compensation follows the service terms.
Pick a plan, or give us 15 minutes to show how your switchboard moves to the cloud.