Telephone companies are promoting "voice mail" as an alternative to the answering machine. ββ βββββββββ ββββββββ ββββ βββββββ ββββ β ββββββββββ ββββ βββ ββββ ββββββ ββ βββ ββ βββ ββββββββββ βββββ ββββ ββββββββ β βββββββ βββββββ ββ ββββ ββ ββ βββββββββ ββββββββ βββ βββββββββ βββββββββ ββββ βββββββ βββββ ββββ ββ ββββ ββββ ββββ βββββββββ ββββββββ βββββββββ βββββ ββ ββ ββββ ββββ βββββββββββ ββββ βββββββββ βββ ββββ βββββββββ ββββ ββ βββββββββ ββββββββ
The telephone companies promoting voicemail conclude that voicemail will soon make answering machines obsolete. This prediction is supported by the observation that voicemail is more convenient, more flexible, and less expensive than answering machines.
The telephone companies are assuming that there are not reasons other than convenience, flexibility, and cost that determine whether consumers use voicemail or answering machines. It could be true that voicemail is superior in convenience, flexibility, and cost, but users still prefer answering machines for some other reason. This would weaken the support for the conclusion that answering machines will soon be obsolete.
Which one of the following, ββ βββββ ββββ βββββ ββββ ββββββββ βββ ββββββββ ββββ ββ βββ βββββββββ βββββββββ βββββ βββββ
Unlike calls made ββ ββββββ ββ βββββββββ βββββββββ βββ βββββββββ βββββ ββββ ββ ββββββββββ βββββββββββ βββ ββββββββββ ββββ ββ βββ ββββ ββββββ ββ ββ βββ ββ βββ ββββ ββ βββ βββββ
The surge in βββββ ββ βββββββββ ββββββββ ββββββββ βββββββ βββββ ββββ ββββ βββββ ββββββββββ ββ βββ βββββββββββ βββββββ
Once a telephone ββββββββ βββββββ ββ βββββββββ ββ βββββ βββββ ββββ ββββββββ βββ ββββββ βββ βββββββ ββ βββ βββββ
Answering machines enable βββ ββββββββ ββ ββββ βββ ββ βββββββ ββββββ βββ ββββββββ βββββββ βββββββ ββ ββββββ βββ ββββββββββ β βββββββ βββββ ββββ ββββ βββ ββββββββ
The number of ββββββββ β βββββββββ βββββββββ βββββββ βββ ββββββ ββ βββββββ ββ βββ ββββββ ββ βββ ββββββββ ββββ ββ βββββ βββββ βββ βββββββββ