Do you really really wanna know what does ren mean? Really?
Now is a good time to learn it. Read further to find out.
So simple yet uncertain. Those who read will find out.
ringer equivalence number
Another definition of ren:
inger equivalence number (REN)
A method of specifying the loading
on an exchange line in respect of a ringing signal. A PSTN line will
non.nally support four standard ringers and is therefore said to have a REN of four.