Cant receive texts from some people

There could be several reasons why you are unable to receive SMS messages on your iPhone while still being able to send them. Here are a few potential explanations and troubleshooting steps you can try:

1. Check your network connection and ensure that you have a stable cellular or Wi-Fi connection. SMS messages require a working network connection to be received. If you're in an area with weak signal or experiencing network outages, it may affect your ability to receive SMS messages.
2. Insufficient storage space on your iPhone can cause issues with message delivery. Check if you have enough free space on your device. If your storage is almost full, try deleting unnecessary files, apps, or media to free up space.
3. Verify that Airplane Mode is turned off on your iPhone. When Airplane Mode is enabled, it disables all wireless communications, including SMS reception.
4. Make sure you don't have the "Do Not Disturb" feature enabled. When enabled, it can silence notifications, including incoming SMS messages. Use Focus on your iPhone or iPad - Apple Support (IN)
5. Check if you have any message filters or blocked contacts set up on your iPhone that might prevent certain SMS messages from being received. Review your message settings and ensure there are no restrictions in place. Block, filter, and report messages on iPhone - Apple Support (IN)
6. Contact your mobile service provider to ensure that there are no specific restrictions or issues with your SMS service. They can check your account settings and troubleshoot any carrier-related problems.
7. Sometimes, a simple restart can resolve temporary software glitches. Turn off your iPhone, wait for a few seconds, and then turn it back on.
   1. Restart the device. That's it.
   2. Still not solved --> Force restart iPhone - Apple Support
8. If the issue persists, you can try resetting all settings on your iPhone. This will not erase your data but will reset all personalized settings to their default values. Go to Settings > General > Transfer & Reset > Reset > Reset All Settings and confirm the action. Note that you will need to reconfigure your settings afterward. All settings—including network settings, the keyboard dictionary, the Home screen layout, location settings, privacy settings, and Apple Pay cards—are removed or reset to their defaults. No data or media are deleted.
   1. Reset All Settings: Return iPhone settings to their defaults - Apple Support:- Return iPhone settings to their defaults
   2. You can return settings to their defaults without erasing your content.
   3. If you want to save your settings, back up your iPhone before returning them to their defaults. For example, if you’re trying to solve a problem but returning settings to their defaults doesn’t help, you might want to restore your previous settings from a backup.
9. Make sure you have the latest updates installed.
   1. Update Over-the-Air (OTA) —> Update your iPhone or iPad - Apple Support (IN)
   2. Update using iTunes/Finder —> Update your iPhone, iPad, or iPod touch - Apple Support (IN)

If none of the above steps resolve the issue, it is recommended to reach out to Apple Support or visit an authorized service center for further assistance. They can provide specific guidance based on your device model and iOS version.

You are able to send but not receive? Very peculiar and strange.

Is it iMessage or SMS?