Articles / Voice API
Industry
Authentication Systems Eventually Return to Phone Numbers
Authentication systems are not designed only for success. They also need to recover from failure. Even in the era of passkeys and biometric authentication, phone numbers continue to serve as one of the last recovery paths.
2026/05/28 ·
Use Cases
Start Small, Protect Properly: Introducing SMS Authentication for “Light Usage”
SMS authentication is not just for large-scale services. Even with a small number of users, security should never be compromised. Xoxzo has long supported small businesses and individual developers by meeting the need for light usage SMS authentication.
2025/12/16 ·
Tutorials
0120 isn’t the only toll-free option for callers!
The prefix for Toll-free numbers in Japan is not 0120 only You can use the prefix of 0800 for the same purpose. Collaborating with Xoxzo's API, you can transfer the received call to your convenient number, using Xoxzo's TTS (text-to-speech) function to answer the call with your favorite message, customise according to your needs and get the call-receipt data without hastle.
2021/10/28 ·
