Hello Prithish,
Thank you for reaching out to the Microsoft Community and I'll be glad to assist you today.
It seems that after the latest Copilot updates, the Voice feature doesn't work as expected. It looks like they are still updating it for a more realistic experience across all platforms. Even though the integrated Copilot in the Bing app on browsers just allows talking, but there's no voice response.
I have noted that the recent updates made the voice more realistic and responsive than the earlier OpenAI Advanced Voice. So, it's possible they're still making changes to the voice feature, and it's unclear if it's available in all regions yet. According to the below-linked articles some users reported success by changing their VPN network to the USA. However, this feature might roll out to all regions soon. There's nothing wrong with your account.For now, all we can do is wait for the feature to be updated!
There have been several discussion threads about this issue. Here are the links for your reference:
Microsoft Link 1-
https://answers.microsoft.com/thread/dfd0770b-d...
Reddit Link 2-
https://www.reddit.com/r/CopilotPro/comments/1f...
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Let me know if you need more help.
Best regards,
Gunasekar N