Jio Fibre Broadband - the calling app still works?

So when I was in Navi Mumbai - I used to stay in area exact opposite to their Navi Mumbai HQ. I used jio's fibre broadand for FREE for almost 6 months. Plz don't confuse this with jio airfibre (which is sattelite wireless broadband). Back then JIO had his app. AFAIR - it was called jio calling or something. Logic was - jio fibre broadband used to come with landline no. you install this app on handset and connect to jio fibre wifi access point. Now you can use this handset for receiving and making call using this landline no. As long as the handset having this app is connected to wifi access point,it would work. The best thing was - one could use 5 handsets at same type for calling/receiving. I am wondering if that app is still working for Jio Fibre broadband? Here is the app on playstore - [https://play.google.com/store/apps/details?id=com.jio.jse&hl=en\_IN](https://play.google.com/store/apps/details?id=com.jio.jse&hl=en_IN) In case its working - plz reply back with your city name where its working. I am more keen on knowing if its available in Ch. Sambhajinagar.