Faxing to India is mainly about formatting the number correctly with +91 and dropping the leading 0 in the area code. Here are clear examples (Delhi/Mumbai) and quick troubleshooting steps.
+910 from the area code011 2345 6789 → +91 11 2345 6789022 2345 6789 → +91 22 2345 6789Codes: International Country Codes
Yes. When you add +91, you typically remove the leading 0 used in local dialing (011… becomes +91 11…).
India’s country code is +91.
Double-check the number format (especially the leading 0) and retry during Indian business hours if the line is busy.