Since the new voicemail set-up a few weeks ago I am not receiving notification of voicemails as I did previously. When I go into the voicemail set-up, and go to "notifications", the system says select your type of notification, 1 - 5. But there is no description of the various types of notification. When I just push 1, nothing happens ??? My phone is a Samsung 4 S, and at work I use an I phone. I want something on my phone that is similiar to the red dot on "Voicemail" on the I phone.