See:
About seven trains a day run to South Bend. The terminal is now the South Bend Airport. More trains run to intermediate points, see the above website for details.
Phone connection: Interurbans always built their own telephone network. Depending on Bell to call in from distant points was extremely expensive, especially back in the 1920s. Some lines had a phone on the train that the motorman plugged into a pole when he stopped to call in for instructions; other lines required the motorman to get out and go to a pole box.
The Phila & Western used crank phones (local battery network) well into the SEPTA era. I think their communication and traffic signal system was upgraded only a few years ago. For many years the starter's booth at the terminal had a desk phone with a handle where the dial would be; those were a modern version of local battery sets.
I believe local battery phones -- where each telephone set has its own battery supply -- worked better in such applications because of the long distances. If they needed extra voltage they simply added another battery in series to the phone. That is a reason it remained common on long rural loops into the 1950s and even 1960s. I believe the switchboard circuits were simpler too. I think foreign makers still built local battery telephone sets well into the 1960s.
Pictures of some old central office switchboards in small towns shows a bank of common battery jacks presumably for subscribers who lived close by in the village, and a bank of local battery jacks (which used a flip shutter) presumably for the more rural subscribers.
I wonder when the last Bell System C.O. of significant size of local battery service was shut down. (Not counting very unusual or isolated locations).
As an aside, some TV shows erred when using such sets as props. If you had to crank the phone to get the operator, you always had to do so, you couldn't merely flash the hookswitch. You also needed to ring off.