Frequently asked questions

Bulk SMS lets you send the same message — or personalised versions of it — to many people at once. With LundoSMS you can upload a list of numbers, write one message and send it to thousands of customers on every Tanzanian network, then see which messages were delivered.

All five Tanzanian mobile networks: Vodacom, Airtel, Yas, Halotel and TTCL. You do not need a separate account for each network — we handle the routing.

A sender ID is the name customers see instead of a phone number, for example YOURBRAND (up to 11 letters and digits). You request it from your dashboard with a short description and supporting documents. Our team reviews it and, where the networks require it, submits it for approval. You can send as soon as it is approved.

Registration and payment are online and immediate. A new sender ID has to be reviewed first, so register it early; you can send as soon as it is approved.

No. Promotional messages need the recipient's consent, and every recipient must be able to opt out. LundoSMS keeps opt-out lists so those numbers are skipped automatically. Please read our Acceptable Use Policy before you start.

Yes. Kiswahili uses standard characters. Emoji and some accented letters switch a message to Unicode, which fits fewer characters per segment — the composer warns you and shows which characters caused it.

You buy SMS credits in Tanzanian shillings, and the price per SMS falls as the size of a single purchase grows. All prices include VAT. The current price list and a calculator are on the pricing page.

Yes. Every price shown on this site is VAT-inclusive, so the total you see is the total you pay. Your receipt shows the amount of VAT contained in the price.

No. SMS credits never expire. Buy what you need now and use it whenever you like.

One credit pays for one SMS segment. A message written with standard GSM characters fits 160 characters in a single segment; longer messages are joined from segments of 153 characters. If the text contains characters outside that set — such as emoji or some accented letters — it is sent as Unicode, with 70 characters in a single segment and 67 in each joined segment. The composer shows the exact count before you send.

By mobile money push, bank deposit or transfer, Mixx by Yas deposit, or Lipa Namba / QR. Mobile money payments are confirmed automatically; deposits are verified by our finance team before credits are added.

Every message has its own status: queued, sent to network, delivered, or failed. "Sent to network" means the operator accepted the message; "delivered" means the handset confirmed it. You can see statuses in the dashboard, export them, or receive them by webhook or SMPP. A phone that is switched off or out of coverage may receive a message late or never — no provider can guarantee delivery when the operator does not confirm it.

Yes. The REST API accepts a single HTTPS request with an API key, supports idempotency keys so a retry never sends twice, and reports status changes by signed webhook. Test keys let you try everything without sending real messages.

Yes. You can bind your own SMPP v3.4 client as a transmitter, receiver or transceiver over TLS and receive standard delivery receipts.

Yes. Create an account, then use a test API key: it goes through the same validation and returns real references, but nothing is sent to a phone and no credits are used.

Use the contact form or email us and the team will reply as soon as it can. Customers can also open support requests from their dashboard.