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SMS from the same account as your voice

Application-to-person SMS is the text message your platform sends to a customer: a verification code, a delivery update, an appointment reminder. Callivex sends it from the account you already use for calls, paid from the same balance, with the sender identity screened before the first message leaves.

Verification codes

One-time passcodes for sign-in, sign-up and payment confirmation. Send the code with one call to the API, or let us generate and check it for you.

Alerts and notifications

Order confirmations, delivery windows, appointment reminders, balance and security alerts. Each message carries a delivery receipt back to your system.

A sender you own

Messages arrive from your brand name or from a number on your account. Every sender identity is screened and approved before it is used, and per-country rules are applied for you.

One request to send, one receipt back

The API is small on purpose. Send a message, or send a verification code and check the answer. Delivery status is posted to your endpoint as it changes, and every message is listed in the console with its state and cost.

  • Send, list and look up messages over HTTPS with a per-account key
  • Verification codes generated, sent and checked for you if you prefer
  • Delivery receipts posted to your webhook; full history in the console
  • Long messages split and joined correctly, in any alphabet
  • Console page for one-off sends and a per-account API key
# Send a verification code POST /v1/otp/send Authorization: Bearer <account key> { "to": "+447700900123", "from": "CALLIVEX" } # Delivery receipt, posted to your webhook id: msg_7f31c2 to: +447700900123 state: delivered segments: 1 charged: from voice balance
# Account balance, today Calls: 3,412 connected billed per second Messages: 1,208 delivered billed per segment Balance: one prepaid wallet, one statement Senders: CALLIVEX (approved) +44 20 7700 0123 (approved) Cut-off: calls and messages stop at zero

One balance, one set of rules

SMS is switched on for an existing account, not sold as a separate product with its own login. Messages are charged per segment from the same prepaid balance as your calls, shown on the same balance page, and stop at the same cut-off.

  • Per-segment pricing by destination country, quoted with your voice rates
  • Same prepaid balance, same real-time usage view, same statement
  • Sender identities screened before use; new ones added on request
  • Transactional traffic first; campaigns are reviewed and capped per account
  • Same 24-hour network operations centre for delivery faults

Switching it on

SMS is added to an account that already exists, or requested alongside voice when you apply.

  1. Tell us what you send. Verification codes, alerts or reminders, the countries you send to and a rough monthly volume.
  2. Sender review. We screen the brand name or number you want messages to come from and confirm what is permitted in each destination country.
  3. Key and test. Your API key appears in the console. Send a handful of test messages and watch the receipts arrive.
  4. Live. Rates for your destinations are added to your account and messages draw from the balance you already hold.

Add SMS to your account

Tell us what you send and where. We come back with per-country rates, usually within one business day.

Ask about SMS →