Hi there! I understand you're having trouble with calls saying the person is busy and friend requests not going through. Let's see if we can resolve these issues together.

For the incoming call issue:
1. Check Network Connection: Ensure both you and the person you're trying to call have a stable network connection. Sometimes, connection issues can cause this kind of problem.
2. Airplane Mode: Make sure that Airplane Mode is turned off on your device. You can easily check this in the Control Center or by going to Settings > Airplane Mode.
3. Call Settings: Check your call settings to see if call barring or call forwarding is enabled. You can find these in Settings > Phone.
4. Restart Your Device: Sometimes a simple restart can fix temporary glitches. Just turn off your iPhone and turn it back on.

For the friend request issue:
1. Network Issues: Similar to calls, a poor connection can prevent friend requests from going through. Verify that your internet is working properly.
2. Account Settings: Ensure your account is in good standing and not restricted in any way. Check if you can send requests to other people.
3. App Updates: Make sure your Aveola app is up-to-date. An outdated app might cause features to malfunction. You can check for updates in the App Store.

If these steps don't resolve your issues, you might want to have your friend try connecting their device to a different network to see if that helps with the call problem.

Please let me know if any of the above steps work or if you need more assistance! Are you satisfied with the solution I provided?