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SMS APIs

Latest knowledge about business communication and technology

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Sending OTPs in Vietnam using VerifyNow OTP API without brandname sender ID registration, showing a smartphone with a secure code and Vietnam flags.

Send OTPs in Vietnam Without a Brandname Sender ID Registration using VerifyNow OTP API

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November 13, 2025

Illustration showing OTP code entry and countdown timer representing OTP expiry duration.

How to Configure OTP Expiry and Resend Logic in Your 2FA OTP API

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November 11, 2025

Illustration showing a smartphone displaying a four-digit OTP code “1234” beside a dollar coin icon, symbolizing cost and performance comparison between 10DLC, Toll-Free, and Short Code messaging options for sending OTPs in the USA.

Choosing Numbers for 2FA OTP: 10DLC vs. Toll-Free vs. Short Code in the USA

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October 29, 2025

Illustration showing bulk SMS delivery via API without getting blocked, with mobile phones, message icons, and warning symbols, used in Message Central blog on sending bulk SMS safely.

How to Send Bulk SMS via API Without Getting Blocked

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October 1, 2025

Illustration of secure OTP delivery in Indonesia without Sender ID, showing a user with a smartphone, security shield, lock icons, and connectivity symbols.

Send OTPs in Indonesia Without a Sender ID Using Message Central’s OTP API

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September 26, 2025

How to Choose a PDP-Compliant SMS API Provider in Indonesia

How to Choose a PDP-Compliant SMS API Provider in Indonesia

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September 22, 2025

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