Where is this cell phone with less downtime?
I can think of ONCE in the last ten years where a landline hasn't been working. And that because the entire town was knocked out due to a severed cable (and cellphones were knocked out too.)
Cell phone outages are a daily occurrence.
And what problems for the maintenance guy? It's two pieces of copper. What is mysteriously failing for you all the time?
Landlines, for me, Just Work.