What is phone rings twice and goes to voicemail?

When a phone rings twice and goes to voicemail, it usually means that the call was not answered by the recipient in time. Some possible reasons for this include:

1. The recipient is busy with another call or task and cannot answer the phone immediately.
2. The phone may be out of reach or turned off.
3. The recipient may have set their phone to forward calls to voicemail after a certain number of rings.
4. The call may be coming from a blocked or restricted number, which the recipient has set to automatically go to voicemail.

If you are experiencing this issue when calling someone, it may be helpful to send them a text message or email to let them know you tried to contact them. If you are the recipient of these calls, it may be useful to adjust your phone settings to allow for more rings before calls are forwarded to voicemail.