Incoming calls by default will be directed to your voicemail if there is no answer from your phone.
You can make the following modifications:
1. Disable the voicemail if you would like calls to ring out. If this option is set, calls cannot be diverted, as they will continue to ring on the phones set in your ‘Normal Forwards’ until answered, or until the caller hangs up.
2. Set the time your phone rings before going to voicemail; the default setting for this is 30 seconds.
3. Choose the voicemail box that your messages go to, if you have more than one mailbox on your account.
Remember to click Save to commit your changes. The status feedback will tell you if your update has been successful.