That's not an "RJ-11 splitter", those are RJ-14 ports.
If the technician comes back, ask him to complete the installation and properly ground the chassis.
Uh oh... Shots are fired!!!
Not really, just timing.
I just spent two days in the field on a new installation. I worked with the manager to get a good handle on the office workflow and designed a solution to improve efficiency with the proper application of technology.
We inherited an MDF that was puking wires, and cleaned it up. We provided structured training to make sure everyone knew how to use their phones, and then returned a second day to reinforce the lessons and resolve any issues.
You know - competent, professional telephone service.
I then opened the forum to read about “RJ-11 splitters” and view a photo of a crappy installation. The glaring comparison of what this industry should be, then the reality of what it really is, was too much for me to take.