Instruction manual

CLASS: Visual Message Waiting Indicator Page 1133 of 3156
Features and Services
If a CLASS set is in the middle of receiving a VMWI message, and the
CLASS set goes off-hook:
• the VMWI message will be aborted. The CLASS set is checked every
10 seconds, for up to 2 1/2 hours, until the set is detected to be idle. At
that time, the system will immediately deliver the VMWI message.
Note that, if the CLASS VMWI feature is waiting to send an “ON/OFF”
message and another “ON/OFF” message is requested, only the last “ON/
OFF” message is actually sent to the CLASS set.
The CLASS VMWI feature supports Nortel Networks and third party CLASS
sets, if these sets are Bellcore VWMI compliant.
The following figures depict a typical feature operation and system resource
allocation scenario for a CLASS Visual Message Waiting Indication being
presented to a CLASS set. Note that the representation is for an ON message
being delivered to the CLASS set. The same operation and system resource
allocation applies for an OFF message being sent, except that the contents of
the message would be different.