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VoWiFi Rolled Out by BSNL in All Circles

3 January 20261 min read
SCIENCE & TECHNOLOGYVoWiFi Rolled Outby BSNL in AllCircles3 January 2026safalsetu.com

Why in the news

State-run BSNL switched on Voice over WiFi across all its circles. Subscribers can now call and text through a Wi-Fi link, which helps indoors and in remote spots where the mobile signal is poor or missing.

Key facts

  • Operator: Bharat Sanchar Nigam Limited (BSNL), a state-run telecom company.
  • Coverage: launched in all telecom circles of the country.
  • Services: voice calls and SMS carried over Wi-Fi.
  • Benefit: better connectivity where cellular coverage is weak or absent.

About VoWiFi

  • Lets a person place and receive calls and messages through Wi-Fi rather than a cell tower.
  • Built on the IMS (IP Multimedia Subsystem) framework.
  • The subscriber keeps the same mobile number and the default phone dialer.
  • Unlike internet-calling platforms, it needs no third-party app.

Exam angle

  • Full form: Voice over WiFi; underlying framework: IP Multimedia Subsystem.
  • Launched by: BSNL, across every circle.
  • Key contrast: no extra app, unlike internet calling services.

Test yourself

1. Which framework does BSNL's Voice over WiFi service work on?

VoWiFi works on the IMS framework.

2. What is needed to use BSNL's VoWiFi besides a Wi-Fi link?

No third-party app is needed; the same number and default dialer are used.

3. BSNL launched VoWiFi in which area?

The launch covered all telecom circles.