This kind of voting allows a senator to cast a vote in committee for an absent senator
Most votes, including quorum votes, are done electronically, and 
allow... [DOC] [TLE] Voting methods in deliberative assemblies - Wikipedia [PAR] Deliberative assemblies  bodies that use parliamentary procedure to arrive at 
decisions  use .... Mason's Manual states, "In the absence of a special rule, a 
majority vote is ...