Telnyx bulk SMS setup for Ultra SMS

Steps

1. Sign up for Telnyx and complete account verification.
2. Create a messaging profile (Messaging, Programmable Messaging).
3. Buy a number with SMS capability and assign it to that messaging profile.
4. In Ultra SMS add a gateway, choose Telnyx, paste the API key and set the From number or profile ID.
5. Send a test message to your own phone.

Good to know

• Sending to US numbers from an ordinary 10-digit number needs A2P 10DLC registration (a brand and a campaign) in the gateway's console first; toll-free numbers need toll-free verification. Unregistered US traffic is blocked or filtered by the carriers.

Before you send through Telnyx

Telnyx charges per message segment at its own rates, which depend on the destination country. Check that your sender is allowed in each country you text. Business traffic to the USA normally needs A2P 10DLC registration or a verified toll-free number, and India needs DLT registration. Use Test credentials first, then send one real test to your own phone.

Dashboards change their menus from time to time; if a label differs, look for the API keys or developer section. Stuck? See the Ultra SMS troubleshooting table, the Ultra SMS user guide, or contact us.