Incoming calls from a number shows cancelled

[AC Question]

Hi

When I call my partner from my office number her mobile always goes to voicemail. Her Samsung Galaxy S4 shows the call as cancelled. Incoming calls from other numbers are fine.

The contact is not in the blocked list. When I look at the
Setting -> My Device -> Call -> Call Rejection
Auto Reject Mode is set to off.
Auto Reject is empty.

It is android 4.4.2.

What do you think the problem is?

Regards

 

[B. Diddy]

Have her select your contact listing in her People app. Ask her to tap the menu button and see if the checkbox for "All calls to voicemail" is checked on.