Audibly informing a recipient of an arrival of a digital communication
from a sender includes receiving a digital communication from a sender
directed to a recipient and determining whether the digital communication
is associated with an audio identifier that identifies the sender of the
digital communication and that is designated by the sender of the digital
communication. Perception by the recipient of the audio identifier is
conditioned on whether the digital communication is determined to be
associated with the audio identifier. The audio identifier is perceived
prior to or concurrent with perception of the digital communication by
the recipient.