The various apartments in our residential area links up to an Intercomm
system where outside visitors could press our apartment's unit # to
communicate with us when they reach the security guard house.
Attached is the photo.
A week back, this unit turns faulty & the contractor requires $300 + to
replace it: is this something proprietary or I can get a compatible set
from eBay to replace? I've tried adjusting volumes & resit but no joy.
If there's compatible set for this urmet set, pls provide me the online
link to purchase