If it's going to a wired phone, the switching office sends the call to the local phone network over phone lines.
What does SO stand for?
SO stands for Switching Office
This definition appears very frequently and is found in the following Acronym Finder categories:
- Information technology (IT) and computers
See other definitions of SO
We have 33 other meanings of SO in our Acronym Attic
- Successful Offeror
- Sud-Ouest (French: south west)
- Sud-Ovest (Italian: Southwest)
- Südost/Südosten (German: South-East)
- Superior Oblique (eye muscle)
- Supervisor's Office (USDA)
- Supply Officer
- Supporting Organization of ICANN
- Surface Operator (MFD)
Samples in periodicals archive:
Work is under way to upgrade service for calls between the Bell Atlantic switching offices located on Peaks Island and on Forest Avenue in Portland.