4.8.0
Sep 18, 2026 · seen Oct 18, 2026
Worldfone4Biz is a tools app by South Telecom with 5,000+ downloads (about 7K estimated). +16 installs in the last 7 days. Released May 29, 2019. Install growth, rank history, SDKs and ad networks.
From the store listing: “Supports the WorldfonePBX service (https://worldfone.vn). The app allows you to make and receive calls directly using SIP and WebRTC technology.”