I Hear a Series of Beeps When I Pick Up My Receiver for CA, OR and WA

I hear beeps when I pick up the receiver on my phone; I can dial out:

 
When a message is waiting, voice mail provides a series of beeping tones known as stutter dial tone
 
For voice mail instructions, go to www.mywave.com and click on your area
 
• In the upper right, click on Help
   
• Scroll down to Phone and click on Phone Feature Help
   
• Choose How to Use Voice mail
   
  • This also occurs if you did not set up your voice mail greeting
     
No voice mail, there could be a problem with equipment or a jack:
 
• Unplug the phone and plug in a phone that is working properly; your phone may need new batteries
   
• If the problem persists, unplug phones and equipment from the jacks/electrical outlets
   
• Plug each piece of equipment back in, one by one, to determine the equipment causing the beeps

I hear beeps when I pick up the receiver on my phone; I can NOT dial out: 

 
• Check phones - receiver may be off the hook
   
• Check cordless phones - they pick up signals from other phones, ham radios, baby monitors, etc
   
• Try a corded phone to determine if a cordless phone is experiencing interference