In the early 2000s the study of e-mail utilization at a service company in Britain discovered that e-mail is less disruptive than the telephone, with the recovery time from an e-mail interruption being 64 s (much less than the 15 min recovery time for telephone calls), but since employees checked their mailbox for new e-mails every 5 min and responded immediately (within 6 s), “with users receiving more and more emails the accumulative effect is still likely to be significant” [ 17 ].
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