You'll have to add a ringer. There are so many on amazon.
Example: https://www.amazon.com/gp/bestsellers/hpc/3776321/ref=CNET has 3 in the top 20.
Would someone know how I can increase significantly my phone ringing function? Suddenly the ringing volume fell down to hardly audibly. Someone at Panasonic gave me a little formula (I forget now) but it increased ONLY the talking voice, NOT the ringing.... ![]()
This is my phone:
Panasonic corded KX-TG4773B and 3 cordless handsets (Not using handsets till I get batteries)
Thanks ever so much for any help.
Adela

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic