Panasonic KX-NS700 Feature Manual page 311

As an Extension
A PS is assigned its own extension number when it is registered to a PBX. The PS can use this
extension number to make and receive calls, just as a wired telephone can. A PS can be a member of
an incoming call distribution (ICD) group, can be assigned as the destination for redirected calls, etc.,
just as a wired telephone can.
A PS can also be a member of a PS ring group (→ 15.1.28 PS—Ring Group). A PS ring group is a way
for several PSs to be notified of an incoming call simultaneously, but does not offer all of the features
provided by an ICD group. (→ 10.1.1 ICD GROUP FEATURES)
In Wireless XDP Parallel Mode
A PS can share an extension number with a wired telephone, allowing extension users to use their PSs
when they are away from their desks to answer or make calls as if they were using their wired
telephones. (→ 22.1.6 Wireless XDP Parallel Mode)
3.
PS Interaction with CS
Each PS communicates with the PBX wirelessly through a cell station (CS). Each CS is connected to
the PBX and sends and receives radio waves to and from different PSs within its range, using different
channels for different PSs.
A PS must be within range of a CS in order to be used, however, multiple CSs can be used with the
same PBX to offer a greater area of wireless coverage. Additionally, a PS does not need to be used with
a specific CS; any PS can communicate with any CS provided the PS is registered to the PBX, and
provided the CS has at least one channel available.
Handover
If a PS is within range of more than one CS, the PS will communicate with the CS which has the greatest
signal strength and an available channel. When a PS user moves out of range of one CS and moves in
range of another CS, the PS will "hand over" its communications to the new CS. Handover is possible when:
a.
The PS is on an intercom call or on a call with an outside party. (The call will not be disconnected
during the handover.)
b.
A call is ringing at the PS. (The call will continue to ring after the handover.)
[Example of Handover]
CS-1 CS-2
Moving
Handover is not possible when the PS is:
a.
Not within range of another CS.
b.
Within range of another CS but that CS is busy.
c.
Screening a call via Live Call Screening (LCS)
d.
Paging other extensions. (→ 15.1.1 Paging)
e.
Dialing digits to make a CO line call.
IP Cell Station
Document Version 2017-06
CS-1 CS-2
Handover
Call is not disconnected
15.1.25 PS (Portable Station)
Feature Manual 311