Among other things, handsets on 3GPP will not work with 5Gi based infrastructure and vice versa. 5Gi sets will also not work on 4G and 6G networks.

A tweet by Income Tax department said the portal has not been available since Saturday. Infosys India Business, which is the Twitter handle of Infosys India Business unit, in a tweet on Sunday evening said, "The emergency maintenance of the @IncomeTaxIndia portal has concluded and the portal is live. We regret any inconvenience caused to taxpayers."

Workrooms lets people meet remotely in a virtual space populated by avatars. It's an app for Facebook's headset, which costs at least USD 300 and weighs a pound. People without a headset can join with a video call. Up to 50 people can be on the call, but only 16 can be in the VR space with avatars. For the full VR experience, users need to have a Facebook account.

Wipro has partnered with cloud company ServiceNow and has plans to launch more @now Studios in Europe, and the Asia-Pacific, Middle East, and Africa region in the coming months.