NEC UNIVERGE UM8000 User Manual page 370

Field
If delivery attempt
failed, wait... minutes
before retrying
Maximum retries
Page Field Descriptions
Description
Accepts the number of minutes that the messaging system
waits after an unsuccessful message delivery attempt before
retrying the message delivery number. An attempt is
unsuccessful when the device is busy, unanswered,
answered by a person who does not enter a personal ID, or
answered by an answering machine.
The maximum number of number of unsuccessful delivery
attempts to the device before the messaging system stops
trying to deliver message notification to the device. To
configure no limit type 99.
370