Mobile service providers testing Wi-Fi calling Service in India. They need to make some changes to the basic architecture to enable us to carry these calls across the Wi-Fi network. It also to support mobility to enable a call to be handed over to an LTE network as we leave Wi-Fi radio coverage. In this Article, I am going to tell you some of the basics details of voice over LTE and voice over Wi-Fi [Wi-Fi Calling].
What is VoWI-FI?
Compare Between Volte and VoWi-Fi [Voice-Over-Wi-Fi Network]
VoLTE is simply a voice over IP connection, therefore, carrying our voice traffic from the PDN gateway, VoLTE is simply a voice over IP connection which Carries Voice across 4g Networks. VoLTE is simply a voice over IP connection, therefore, carrying our voice traffic from the PDN gateway. down to the serving gateway across the radio network and down to the phone. In other words, the voice is simply IP traffic being carried across the system.
For the wish to support Wi-Fi calling need to add some additional network elements. Here You can see an access point our Wi-Fi radio which connects back into our mobile service providers network via any PDG an evolved packet data gateway.
Therefore when the mobile moves over onto Wi-Fi voice over Wi-Fi now will simply pass across these network elements again carry the Wi-Fi network up through our Evolved Packet data gateway and out onto the same PDN gateway.
PDN gateway acts as our anchor point and therefore the mobile moves between Wi-Fi and LTE, Traffic will still remain anchored through the same PDN gateway. In other words, the mobile can maintain an IP address which is stored at the PDN gateway and therefore as far as external servers. There is no change with the mobile switches between the different access networks.
Voice-Over-Wi-Fi (VoWi-Fi) in India
Reliance Jio is testing VoWi-Fi (Voice Over Wi-Fi) service in India. With the help of the new service, this telecom company of Mumbai will provide its subscriber with the ability to make voice calls and access the Internet without any active cellular connectivity. The Jio VoWi-Fi service is now tested in India’s selected areas include Andhra Pradesh, Kerala, Madhya Pradesh, and Telangana. Reliance jio is not saying anything about their VoWi-Fi Service. We hope All the jio subscriber (Jio Users) enjoy this service in the next year.
VoWI-FI Supported Mobile
The most popular smartphones launched in recent times comes with VoWi-Fi support. But for supporting this service these handsets will need software updates. Brand Asus and HTC recently provided VoWi-Fi support through their handset update.
My new Asus Zenfone Max Pro M1 recently 25.12.2018 System Update 15.2016.1811.338 (291.84 MB) enable TW CHT VoLTE and VoWI-FI.
Jio Phone and Jio Phone 2 will also support Voice over Wi-Fi service in India. This service is mainly for remote areas where the network is usually weak. After support in the JIO Phone model, Reliance Jio will be able to provide this facility to more mobile phone users in the country.
Apart from this Reliance Jio, Bharti Airtel and Vodafone are also planning to launch their VoWi-Fi service in India.