Why i call someone and it reaches voicemail. But they say i did not ring. What causes that

There could be several reasons why this occurs:

1. Network issues: Sometimes network congestion or a weak signal can cause a missed call to go straight to voicemail without the phone ringing.

2. Do Not Disturb mode: The person you are calling may have their phone on Do Not Disturb mode, which sends all calls directly to voicemail without ringing.

3. Call forwarding: The person may have set up call forwarding to another number or voicemail, so the call does not ring on their phone.

4. Phone settings: The person may have set specific settings on their phone that send certain calls directly to voicemail without ringing.

5. Phone off or out of service: If the person's phone is turned off or out of service, the call will go straight to voicemail without ringing.

6. Call rejection or blocking: The person may have blocked your number or set up call rejection for certain numbers, resulting in the call going straight to voicemail without ringing.

It's important to communicate with the person you are trying to reach to understand why your call is going straight to voicemail without ringing.