Panasonic KX-TD500 System Reference Manual page 300

2. Station Hunting
2-1.
*
2-2.
*
All members of a hunting group are non-VPS extensions
Ext./CO
Call State
Ringback Tone *
Busy Tone
In case of outside calls (DIL 1:1, DISA,DID)
In an incoming outside call is not answered by the extension in a specified time
period (IRNA timer), it will be transferred to another destination. — IRNA
Refer to "6. Intercept Routing No Answer (IRNA)" and "7. IRNA and Station
Hunting" on pages 3-F-52 through 3-F-55 for further information.
All members of a hunting group are VPS extensions
Ext./CO
Call State
Ringback Tone *
Busy Tone
The KX-TD500 system sends the "Forward to VM Sequence" when the VM
extension answers the call.
3-F-40
Ext.4
Hunting
Ext.1 Hunting Group
Hunting
Ext.2
Conditions
At least one extension of a hunting
group is idle.
All members of a hunting group are
busy.
VPS 4
Hunting
VPS 1 Hunting Group
Hunting
VPS 2
Conditions
At least one VPS extension of a
hunting group is idle.
All members of a hunting group are
busy.
Hunting
Ext.3
Hunting
Hunting
VPS 3
Hunting