Forwarding calls from your AT&T mobile number to your 2nd Phone Number number is indeed possible, provided the 2nd Phone Number number is a US number. Here's how you can do it:

  1. Check with AT&T:

Since methods for call forwarding may vary slightly among providers, it's advisable to reach out to AT&T customer support directly. They can furnish you with specific instructions tailored to your current plan and device. Typically, call forwarding entails dialing a particular code sequence followed by the destination number (your 2nd Phone Number number in this case).

  1. Verify your 2nd Phone Number number:

Ensure that your 2nd Phone Number number is activated and ready to receive calls. You can verify this within the 2nd Phone Number app itself.

Additional Tips:

  • Call forwarding may result in additional charges from AT&T depending on your plan. Refer to their website or contact them for further details.

  • If you frequently require call forwarding, explore alternative solutions within the 2nd Phone Number app, such as setting up call forwarding directly through the app's features.