The standard announcement used is "I am afraid all the operators are busy at the moment but please hold and you will be transferred when somebody becomes available." This can be replaced in a number of ways, depending on the (incomplete information).
The maximum length for announcements is 10 minutes. New announcements can be recorded using the following methods:
Voicemail Pro - IP Office Mode
Access the hunt group mailbox and press 3. Then press either 3 to record the 1st announcement for the hunt group or 4 to record the 2nd announcement for the hunt group.
Voicemail Pro - Intuity Emulation Mode
There is no default mechanism within the Intuity telephony user interface to record hunt group announcements. To provide one a custom call flow containing an Edit Play List action should be used. In the file path enter [GREETING]\<hunt_group_name>_Queued or [GREETING]\<hunt_group_name>_StillQueued. where<hunt_group_name> is replaced by the hunt group name.