Press 
.
Dial the Message Waiting Activate feature access code.
Dial the number of the station.
Press .
Dialed Messaging lets you leave a message waiting indication on a telephone. The message waiting indication can include the following signals:
Flashing lamp (on sets equipped with message waiting lamps)
Special tone when you lift the handset (on sets without lamps)
Periodic ringing.
When you receive a message waiting indication, call your message taker to accept the message.
Hunt groups must have a message waiting condition applied to the pilot number if the first available station is to respond to this condition. This requirement does not affect any need to have message waiting apply to individual stations in that group.
Enable "Message Waiting" for the station that can set up and disable message waiting indications against another station.
Enable "Message Waiting Audible Tone Notification" to provide tone notification when the station goes off-hook, .
Program the "Message Waiting Ringing Start Time" and the "Message Waiting Ringing Stop Time" to provide ringing notification at 15 minute intervals during time period specified. If both fields are left blank, ringing notification will not be provided.
Enable "Message Waiting Deactivate On Off-Hook" to cancel the message on the first on-hook event.
Enable "Message Waiting Inquire" to allow the user to check for dialed messages from a remote station.
For ONS CLASS/CLIP sets, enable "ONS CLASS/CLIP: Message Waiting Activate/Deactivate".
(Optional) Set up a Message Taker hunt group (see Hunt Groups).
For sets with message waiting lamps that connect to the ONS or ONS CLASS/CLIP line cards, the standalone ASU, or the embedded analog board, enable "Message Waiting Lamp".
Feature
Access Codes form
If you intend to use feature access codes, assign the following codes:
Message Waiting Activate
Message Waiting Deactivate
Message Waiting Inquire
NOTE: For Centralized Suites for Analog Devices ensure that the Alternate Code field is configured. An alternate code is necessary for the feature to work over IP trunks.
Supported on all devices.
To leave a message waiting indication on a telephone:
Lift the handset.
Dial the Message Waiting Activate feature access code.
Dial the number of the station.
Hang up.
To respond to a message waiting condition on your telephone:
Lift the handset.
Dial the number of the designated messaging answer point.
To check for a message waiting indication from
a remote station
(if you hear dial tone, you have a message; if you hear busy tone, you
do not have a message):
Lift the handset.
Dial the Message Waiting Inquire feature access code.
Dial the number of the station being queried.
Hang up.
The OpenPhone 27 does not have a message waiting lamp. Therefore, if you use the Message Waiting Activate feature access code to leave a message waiting indication on a OpenPhone 27, the phone does not provide visual indication to the end user that a message is present. The user must enter the Message Waiting Inquire feature access code to determine if a message is present.
To leave a message waiting indication on a telephone:
Press .
Dial the Message Waiting Activate feature access code.
Dial the number of the station.
Press .
To respond to a message waiting condition on your telephone:
Press .
Dial the number of the designated messaging answer point.
To check for a message waiting indication from
a remote station
(if you hear dial tone, you have a message; if you hear busy tone, you
do not have a message):
Press .
Dial the Message Waiting Inquire feature access code.
Dial the number of the station being queried.
Press .