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5.2 System Configuration—Extensions
5.2.1 IP Proprietary Telephone (IP-PT)
Description
IP Proprietary Telephones (IP-PTs) are telephones that make and receive calls using IP and that connect to
the PBX over a LAN. Except for their use of IP, they function almost identically to traditional proprietary
telephones. Each IP-PT is always registered to a specific User Container and must belong to one User
Group.
IP-PTs have two Ethernet ports for connection, primary and secondary. They are connected to the PBX
through a network hub or other splitting device, and can have a PC connected to the secondary Ethernet
port.
[Connection Example]
PBX
V-IPEXT
Main Office
Conditions
IP-PTs that can be integrated into the KX-NSX are the KX-NT343, KX-NT346, KX-NT366, KX-NT543,
KX-NT546, KX-NT560, KX-NT511, KX-NT551, KX-NT553 and KX-NT556. In addition, the KX-NT300 series
models can only connect to the Expansion Gateway
•
IP-PT registration is required through system programming before an IP-PT can be used with the PBX.
An IP-PT cannot be used unless an extension number is assigned. However, depending on system
programming, registration may occur completely automatically, or may require only inputting the desired
extension number.
For details on how to register IP-PTs, refer to the Installation Manual.
•
The following optional devices are available for the KX-NT300 series (except KX-NT321) IP-PT:
–
KX-NT307(PSLP1528) Bluetooth Module
–
KX-NT303 Add-on 12 Key Module (not available for KX-NT366)
–
KX-NT305 Add-on 60 Key Module (not available for KX-NT366)
•
The following optional devices are available for the KX-NT553/KX-NT556 IP-PT:
–
KX-NT505 Add-on 48 Key Module (maximum four units connectable).
•
DSP Resource Usage
Making a call from an IP-PT requires a certain number of DSP resources, depending on the codec used.
If all DSP resources are in use, this operation cannot be performed. To ensure a minimum level of
performance, DSP resources can be reserved for VoIP communication. (→ 5.5.3 DSP Resource Usage)
However, DSP resources are not required for P2P calls. (→ 5.2.3 Peer-to-Peer (P2P) Connection)
Private IP
Network
IP-PT
Primary
Secondary
Ethernet Port
Ethernet Port
IP-PT
PC
5.2 System Configuration—Extensions
IP-PT
Branch Office
Feature Manual
393
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