Why does my phone go to voicemail on first vibrate?

[iMore Question]

Phone goes to voicemail on first vibrate

When volume is turned off this happens

 

[Rob Phillips]

Phone goes to voicemail on first vibrate

Welcome to iMore! So when your phone is on silent it goes right to voicemail but when the ringer is on it rings first? Please provide more detail so we can provide better advice. Thanks!


Sent from my iPhone using Tapatalk

 

[Q115115]

This can happen if you're in a weak network reception place, the caller basically was calling you the whole time, and once the reception does finally connect, you get 1 or 2 rings before it goes to voice mail.