@bishoplad Please try doing the following:
Open the Phone app > Keypad > Type **61*321**00# on your keypad. This code will allow you to set how long your phone rings before it goes to your voicemail > Replace 00 in the code with the number of seconds you want your phone to ring. For all incoming calls, your phone will ring for the number of seconds you enter here, and then it will drop to voicemail. Your options here include 05, 10, 15, 20, 25, and 30 seconds. For example, if you want your phone to ring for 15 seconds before it goes to voicemail, your keypad code should look like **61*321**15#.
