Semaphore bulk SMS setup for Ultra SMS

Steps

1. Sign in at semaphore.co and copy your API key.
2. Register a sender name.
3. In Ultra SMS open the Gateways tab, click Add gateway, choose Semaphore, and paste the key and enter the sender name. Click Test credentials (it sends nothing).
4. Send a test message to your own phone before you start a campaign.

Good to know

• Semaphore serves Philippine numbers.
• Semaphore silently ignores any message starting with the word TEST, so Ultra SMS stops those with an error. Use different wording for test SMS.

Before you send through Semaphore

Semaphore 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.