Bharti Airtel today announced the availability of its Voice Over Wi-Fi service – Airtel Wi-Fi Calling — in Mumbai, Kolkata, Andhra Pradesh, Karnataka, and Tamil Nadu.

Earlier, Airtel launched Wi-Fi Calling in the Delhi NCR region. Airtel has also received the support of more smartphone suppliers.

Airtel Wi-Fi Calling enhances the indoor voice calling experience for smartphone customers of Airtel. The innovative service uses WiFi networks to create a dedicated channel for voice calls and allows customers to make calls to any telecom network.

“This improves customer experience as one can seamlessly switch to Airtel Wi-Fi Calling,” Airtel said in a statement on Monday.

There is no extra charge for calls made over Airtel Wi-Fi Calling and the application consumes minimal data.

Airtel Wi-Fi Calling does not require any app and can be configured on smartphones such as

all Apple iPhone models starting 6s and above; Xiaomi’s Redmi K20, Redmi K20 Pro and POCO F1; Samsung J6, A10s, On6, S10, S10+, S10e, M20 and all OnePlus 7 and 6 series devices.