Many lengthy sentences contain items that you can separate from the text and put in a list. Use a list to make the text easier to read and the information easier for the reader to find.
Preferred
Discouraged
The central office (CO) sends calls to the switch over trunks that carry the calls between:
Two switches
A CO and a switch
A CO and a telephone
The central office (CO) sends calls to the switch over trunks that carry the calls between two switches, between a CO and a switch, or between a CO and a telephone.
