Possible Clues:

• Bygone TV part
• Word after sun or speed
• Oscilloscope knob
• Phone tone
• Classic phone feature
• Lifebuoy rival
• Placed up side down on the face of it
• Dismal, heartless old way to call
• "Friends Don't Let Friends ___ Drunk" Plain White T's
• Betted, backing out-of-form steeplechaser up from Hitchcock film