https://www.handyhase.de/magazin/wifi-calling/
Jan 16, 2025 - WiFi-Calling, WLAN-Call, WLAN-Telefonie: Wie funktioniert es und welche Vorteile bietet es? Wo lauern Fallen?
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https://www.hindustantimes.com/business/bsnl-rolls-out-nationwide-wifi-calling-in-push-to-counter-private-rivals-101767253109813.html
BSNL WiFi calling comes at no extra cost, a move that coincides with its 4G expansion to 97,000 sites.| Business News
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