Anything harmful about using a buttset on a punch block?

Currently an IT Admin, but have been wanting to dig into the phone system for awhile now. id like to beable to test the phone lines if they go down. i want to buy a toner and probe, and a butt set to help me out. do either of these tools have a chance of breaking anything, ie shorting out a line or modem? or... show more Currently an IT Admin, but have been wanting to dig into the phone system for awhile now. id like to beable to test the phone lines if they go down.

i want to buy a toner and probe, and a butt set to help me out. do either of these tools have a chance of breaking anything, ie shorting out a line or modem? or are they pretty harmless.
2 answers 2