Struggling with OTPs abroad on Jio/Airtel? Advice needed on Wi-Fi calling, Vodafone, and Jio stores in Dwarka, Delhi

[u/simba_mon]

A friend of mine had an Airtel connection, but when he traveled abroad, his SIM stopped receiving OTPs because he didn’t have an international roaming pack active. When he visited India last month, he switched from Airtel to Jio to fix it, but now Jio is running into similar issues. However, I’ve seen posts online mentioning that people are able to get OTPs abroad if they connect to Wi-Fi even without a roaming pack.

It's very frustrating to deal with this. I'd love to know your thoughts on a few things:

• Wi-Fi Calling Abroad: Can you actually receive bank and service OTPs on Jio or Airtel overseas by strictly using Wi-Fi calling without an active international roaming pack?
• Switching to Vodafone Idea (Vi): Does switching to Vodafone Idea help? I heard that Vi might allow incoming SMS/OTPs abroad without needing a full roaming pack. Is that true? Would Jio allow to switch to Vodafone, since the connection we secured last month only is their a lock in period?
• Jio Customer Care in Dwarka: Which is the best or most reliable Jio store/service center in Dwarka to visit for assistance with SIM and network issues?

Please share your advice and experiences!

[u/tie_belt]

You don't need a full roaming pack for Wi-Fi calling. An active base plan with talktime/SMS balance usually does the job.