It's my understanding that the WW&F never had line-side telephone or telegraph service. I don't recall seeing any photos of wires going into WW&F stations with the exception of a photo showing wires along the trestle between the lower and upper yards at Wiscasset. (That remark should produce a plethora of photos.)

I am reminded of the joke about the three archeologists. One from Country B proclaimed that his people had discovered copper a meter under the earth, suggesting the possibility of early wire communications. Not to be outdone, the archeologist from Country F proclaimed that his crew had discovered small glass fragments two meters down, suggesting that their civilization possibly had fiber optics even before country B. The third archeologist, from Country I, trumped them all by proclaiming that nothing was found even three meters down, plainly suggesting wireless technology was used there before any of the others. The names of Britain, France, and Israel have been disguised for the purpose of international harmony.
-John M