Panasonic Hybrid IP-PBX User manual

KX-TDA100
Model KX-TDA200
Thank you for purchasing a Panasonic Hybrid IP-PBX.
Please read this manual carefully before using this product and save this manual for future use.
KX-TDA100/KX-TDA200: Version 2.0
Hybrid IP-PBX
Information about
IP Proprietary Telephones

2 Information about IP Proprietary Telephones
Table of Contents
1 Introduction............................................................................................. 3
1.1 Overview ............................................................................................................................4
1.1.1 Using the IP Proprietary Telephones on the Local Office LAN ...........................................4
1.1.2 Using IP Proprietary Telephones on the Local and Remote Office LANs ...........................6
1.2 Network Management .......................................................................................................8
1.2.1 DHCP (Dynamic Host Configuration Protocol) Server ........................................................8
1.2.2 VLAN (Virtual LAN) .............................................................................................................9
2 Guidance for VoIP Installation............................................................. 11
2.1 VoIP Requirements .........................................................................................................12
2.1.1 Bandwidth Assessment.....................................................................................................12
2.1.2 Network Configuration.......................................................................................................12
2.1.3 Network Devices ...............................................................................................................15
2.2 VoIP Requirements Checklist.........................................................................................17
3 Installation............................................................................................. 19
3.1 Installing the IP-EXT16 Card in the Hybrid IP-PBX ......................................................20
3.1.1 Names and Locations .......................................................................................................20
3.1.2 Installation .........................................................................................................................21
3.2 Connecting to the LAN ...................................................................................................23
3.2.1 Connecting the IP-EXT16 Card.........................................................................................23
3.2.2 Connecting the IP Proprietary Telephones .......................................................................25
4 Programming ........................................................................................ 27
4.1 Programming the IP-EXT16 Card...................................................................................28
4.1.1 Assigning the IP Addressing Information ..........................................................................28
4.2 Programming the IP Proprietary Telephone .................................................................30
4.2.1 Assigning the IP Addressing Information ..........................................................................30
4.2.2 Setting the VLAN Parameters ...........................................................................................32
4.3 Registering the IP Proprietary Telephone.....................................................................33
4.3.1 Registering the IP-PT........................................................................................................33
4.3.2 De-registering the IP-PT ...................................................................................................34
A Troubleshooting.................................................................................... 35
A1 Troubleshooting ..............................................................................................................36
A1.1 Operation ..........................................................................................................................36
A1.2 Error Message...................................................................................................................37

Information about IP Proprietary Telephones 3
Section 1
Introduction

1.1 Overview
4 Information about IP Proprietary Telephones
1.1 Overview
1.1.1 Using the IP Proprietary Telephones on the Local Office
LAN
Panasonic KX-NT series IP proprietary telephones (IP-PTs) allow voice communication over the data
network by converting the voice into data. The following diagram shows a simple Voice over Internet protocol
(VoIP) network using the IP-PTs at the local office.
Network Parameters
You will need to have the following IP addressing and VLAN ID information to use IP-PTs on your network.
This information is typically supplied by a network administrator.
The numbers in the table below are given as examples. Consult your network administrator for specific
values.
Parameter Description Example Entry
IP-PT Extn. 101 IP-PT Extn. 102
IP-PT IP Address
Identifies the location of IP-PTs on the
network. Each IP-PT must have a
unique IP address.
192.168.0.101 192.168.0.102
Subnet Mask Address
Defines which digits of an IP address
are used for the network address and
the host address at each network
location. IP addresses of IP-PTs and the
IP-EXT card must fall within the same
subnet as that of the default gateway
(e.g., router) of the LAN.
255.255.255.0
DHCP Server
IP-PT
Extn. 101
IP-PT
Extn. 102
Switching
Hub
Hybrid IP-PBX
with an IP-EXT16 card
PC

1.1 Overview
Information about IP Proprietary Telephones 5
Default Gateway
Address
Identifies the IP address of the primary
gateway (typically a router or similar
device) that exchanges IP packets with
the other gateways on the VoIP network.
192.168.0.1
PBX IP Address Identifies the location of the IP-EXT card
with which IP-PTs will communicate. 192.168.0.100
VLAN ID
Identifies the ID of the logical segment
within the corporate LAN, through which
voice packets from IP-PTs travel. For
details, refer to "1.2.2 VLAN (Virtual
LAN)".
1
Parameter Description Example Entry
IP-PT Extn. 101 IP-PT Extn. 102

1.1 Overview
6 Information about IP Proprietary Telephones
1.1.2 Using IP Proprietary Telephones on the Local and Remote
Office LANs
By connecting the local office LAN to other LANs at different locations, the IP-PTs on the remote office LANs
can be used as extensions of the Hybrid IP-PBX at the local office.
DHCP Server
IP-PT
Extn. 101
IP-PT
Extn. 102
IP-PT
Extn. 103
IP-PT
Extn. 104
DHCP Server
Remote Office LAN
Local Office LAN
Router
Switching
Hub
Hybrid IP-PBX
with an IP-EXT16 card
PC
IP Network
PC
Switching
Hub
Router

1.1 Overview
Information about IP Proprietary Telephones 7
Network Parameters
To use IP-PTs at the remote office, you will need to have the IP addressing and VLAN ID information
described in "1.1.1 Using the IP Proprietary Telephones on the Local Office LAN".
Types of IP Network
When using IP-PTs over LANs at different locations, first confirm the type of IP network connecting the
LANs. The speech quality depends on the type of IP network in use. Managed IP networks provide better
speech quality compared to unmanaged networks such as the Internet, where quality of service cannot be
guaranteed.
Note
Unlike an IP-VPN, which is set up over a network provider's own IP network, an Internet VPN is set up
over the Internet. Internet VPNs are not recommended for IP-PT communications because
transmission delays and loss of data are likely occur.
Parameter Local Office Remote Office
IP-PT Extn. 101 IP-PT Extn. 102 IP-PT Extn. 103 IP-PT Extn. 104
IP-PT IP Address 192.168.0.101 192.168.0.102 10.75.0.103 10.75.0.104
Subnet Mask Address 255.255.255.0 255.255.255.0
Default Gateway
Address 192.168.0.1 10.75.0.1
PBX IP Address 192.168.0.100
VLAN ID 1
Examples of recommended IP networks
• Digital Leased Line
• IP-VPN (Virtual Private Network)
•FrameRelay
Not recommended
• Internet (including an Internet VPN)

1.2 Network Management
8 Information about IP Proprietary Telephones
1.2 Network Management
1.2.1 DHCP (Dynamic Host Configuration Protocol) Server
For IP-PTs to communicate over a network, an IP address must be assigned to each IP-PT to identify its
locations on the network. While these addresses can be assigned manually at each IP-PT, it is also possible
to use a DHCP server.
A DHCP server automatically assigns IP addresses to IP-PTs when they are connected to the network. An
IP-PT then use the received IP addresses to register to the IP-EXT16 card.
Using a DHCP server allows you to centrally manage and automate the assignment of IP addresses.
Notes
• The Hybrid IP-PBX is not able to act as a DHCP server. To use the DHCP client function of IP-PTs,
a separate DHCP server is required on the network, as shown above.
• The IP address for the IP-EXT16 card cannot be assigned automatically using a DHCP server. This
IP address must be assigned manually by using KX-TDA Maintenance Console (PC programming
software of the Hybrid IP-PBX). For details, refer to "4.1 Programming the IP-EXT16 Card".
• An IP-PT cannot request IP addresses from a DHCP server on another LAN (connected through
IP network). An IP-PT can only receive IP addresses from a DHCP server on its own LAN.
Therefore, when IP-PTs are located on several LANs, a DHCP server is required on each LAN. If
a DHCP server is not present on the LAN, IP addresses for IP-PTs on that LAN must be assigned
manually.
DHCP Server IP-PT
IP Address: 192.168.0.101
Subnet Mask Address: 255.255.255.0
Default Gateway Address: 192.168.0.1
Request IP addresses
Assign IP addresses
to an IP-PT IP-EXT16 Card
Request registration using
the received IP addresses
Establish connection
When an IP-PT is connected
to the network
When the IP-PT is registered
to the IP-EXT16 card
1
2
3
4

1.2 Network Management
Information about IP Proprietary Telephones 9
1.2.2 VLAN (Virtual LAN)
VLANs are logical segments within a corporate LAN. By assigning VLAN settings to IP-PTs, it is possible to
separate the packets transmitted by an IP-PT according to the type of data, and specify which VLAN each
data type will be sent over. This allows you to avoid generating unnecessary network traffic on each
segment, and to reduce the load on the network. As a consequence, speech quality can be assured.
Therefore, we recommend to use the VLAN feature to perform VoIP communication effectively.
An IP-PT has two ports for packet communication, primary and secondary. VLAN settings (VLAN ID and
VLAN priority) for the primary port affect voice data transmitted by the IP-PT, whereas VLAN settings for the
secondary port apply to data transmitted by a PC connected to the IP-PT.
Allocating these ports to different VLANs enables you to split the paths for packets from an IP-PT depending
on whether the packet contains voice signals or data. When transmitting packets, the IP-PT can attach
information on which VLAN the packets are to be transmitted over (VLAN Tagging). The switching hub that
receives these packets reads the VLAN information and sends the packets over the appropriate VLAN. This
helps to ensure bandwidth for IP-PT voice transmissions.
In addition, the IP-PT can transmit voice packets with higher priority than other data packets. As this lowers
the rate of loss and delay in transmissions of voice packets, speech quality can be assured to a certain
extent.
Notes
•This VLAN feature complies with IEEE (Institute of Electrical and Electronics Engineers) 802.1Q.
Hybrid IP-PBX
Switching Hub
IP-PT
VLAN 1VLAN 1
VLAN 1
VLAN 2
VLAN 2
VLAN 1
Segment for Voice Data
VLAN 2
Segment for Other Data
Voice Packet
Other Packet
PC
PC
Primary Secondary
Other Packet
VLAN 2

1.2 Network Management
10 Information about IP Proprietary Telephones
•The Hybrid IP-PBX receives VLAN settings only from the connected switching hub. Therefore,
VLAN settings for the Hybrid IP-PBX must be assigned at the switching hub.
•Some PC LAN cards allow VLAN settings to be assigned. However, when using a PC connected
to an IP-PT, the VLAN settings for PC communications must be assigned only to the secondary
port of the IP-PT. Any VLAN settings assigned to the PC LAN card must be disabled. These
settings can usually be identified by "802.1Q", "802.1p", or "VLAN" in their name.

Information about IP Proprietary Telephones 11
Section 2
Guidance for VoIP Installation

2.1 VoIP Requirements
12 Information about IP Proprietary Telephones
2.1 VoIP Requirements
2.1.1 Bandwidth Assessment
When using IP-PTs, you must ensure that the IP network in use has enough bandwidth to support VoIP
communications. If the amount of bandwidth required for VoIP communications is larger than the network
can accommodate, speech quality will be compromised. In addition, there may be an adverse effect on the
performance of other applications (e.g., email or web applications) that use the same network. Therefore,
care must be taken when assessing bandwidth requirements.
Inform your network administrator of the required bandwidth, and make sure that the network can support
VoIP communications even under conditions of maximum network traffic.
Required Bandwidth per IP-PT for a Call
The required bandwidth depends on what combination of CODEC and packet sending interval is used. Keep
in mind the following points about the type of CODEC and packet sending interval, in terms of speech
quality:
•The speech quality of the G.711 CODEC is higher than that of the G.729a CODEC.
•The shorter the packet sending interval, the higher the speech quality.
•The higher the speech quality the IP-PTs provide, the more bandwidth the IP-PTs require.
Required Bandwidth for Each IP-EXT16 Card
To allow all IP-PTs to make calls simultaneously, it is necessary to keep available the bandwidth required
by an IP-EXT16 card with the maximum number of IP-PTs connected.
Provided below is the formula to calculate the amount of bandwidth required for each IP-EXT16 card.
2.1.2 Network Configuration
You must evaluate the structure of the existing network to see if a VoIP network can be implemented. Below
are the points that should be evaluated.
Is the IP network a managed network?
A VoIP network should be implemented on a managed IP network such as Frame Relay, Leased Line, or
IP-VPN (Virtual Private Network).
An unmanaged network, such as the Internet (including an Internet VPN), cannot be used to employ a VoIP
network because delays and loss in data transmission can cause huge degradation in speech quality.
CODEC Packet Sending Interval
20 ms 30 ms 40 ms 60 ms
G.711 87.2 kbps 79.5 kbps ——
G.729a 31.2 kbps 23.5 kbps 19.6 kbps 15.7 kbps
Required Bandwidth
= (Required Bandwidth per IP-PT ×16)

2.1 VoIP Requirements
Information about IP Proprietary Telephones 13
Is it possible to have static IP addressing?
IP-PTs on the network must always communicate with each other through the IP-EXT16 card, not directly.
Therefore, the card must be assigned a static IP address, which must be programmed to each IP-PT on the
network.
Note
When a DHCP server (which automates IP addressing of the IP-PTs on the network) is not used, static
IP addressing must also be enabled for all IP-PTs.
Does only a single router provide IP-PT access to the IP network?
In a dual network, 2 routers provide access to the IP network as shown in the diagram below. However, only
one router can be used as an access point to the network for all IP-PTs.
Therefore, in the diagram below, if router A, whose IP address is assigned as the default gateway IP address
of the IP-PT and IP-EXT16 card, fails, VoIP communications are no longer possible; they are not able to
switch their default gateway from router A to router B to access the IP network.
IP Network
Router A Router B
Default gateway of
the IP-EXT16 card:
Router A
Default gateway of
the IP-PT:
Router A

2.1 VoIP Requirements
14 Information about IP Proprietary Telephones
Does the router not use network address translation (NAT/NAPT)?
If the router uses address translation techniques (e.g., NAT/NAPT) to convert between global and local IP
addresses, VoIP communications between the IP-EXT16 card and IP-PT cannot be carried out effectively.
Therefore, the routers used to access the IP network must not use NAT/NAPT. Generally, NAT and NAPT
are features that are available with routers.
Router Router
Router Router
Global IP Address
Domain
Local IP Address
Domain
Local IP Address
Domain
Local IP Address
Domain
Using NAT/NAPT NOT Using NAT/NAPT
IP Network IP Network

2.1 VoIP Requirements
Information about IP Proprietary Telephones 15
Are the IP-EXT16 card and IP-PTs located appropriately?
Transmission delays can cause pauses and loss in VoIP communications. The more routers there are
between the IP-EXT16 card and IP-PTs, the longer the transmission delays, because a certain amount of
delay is inevitable when packets pass through each router.
Additionally, the more switching hubs between the card and IP-PTs, the longer the transmission delays,
because the switching hubs must also handle the network traffics generated by other terminal devices (e.g.,
PCs) connected to them.
To prevent unnecessary delays, it is recommended to connect the card and IP-PTs so that there are as few
network devices (e.g., routers, switching hubs) between them as possible.
2.1.3 Network Devices
You must evaluate the network devices that are used in the existing network to see if a VoIP network can be
implemented. Below are the points that should be evaluated.
Can the firewall pass packets from IP-PTs?
If the VoIP network contains a firewall, the firewall must be configured appropriately to allow VoIP packets,
listed in the table below, to pass through the network without being blocked by filtering.
For more information, consult your network administrator.
Protocol Description TCP/UDP Default Port No.
RTP (IP-EXT16) Real-time Transport Protocol.
Used for voice data transmission.
UDP 8000 to 8063
RTP (IP-PT) UDP 8000 to 8063
Maintenance (IP-EXT16) Panasonic proprietary protocol.
Used for communication parameter
negotiation with the PBX, download of
country/area data, confirmation of
connection with the PBX, and notification
of error messages and statistical
information to the PBX.
UDP 9300
Maintenance (IP-PT) UDP 9301
MGCP (IP-EXT16) Media Gateway Control Protocol.
Used for call control command data and
LCD/LED data transmission.
UDP 2727
MGCP (IP-PT) UDP 2427
IP Network
RouterRouter
Switching
Hub
Switching
Hub
Switching
Hub

2.1 VoIP Requirements
16 Information about IP Proprietary Telephones
Are layer 2 or 3 switches used?
Use of repeater hubs can increase the network load, and therefore may result in degradation in speech
quality.
To ensure high speech quality, use only layer 2 or 3 switches when connecting the IP-EXT16 card to the
LAN. Use of layer 2 or 3 switches for connection is also strongly recommended for IP-PTs.
Note
Note that the port of the switching hub that connects to the IP-EXT16 card should be set to operate
under "Auto Negotiation" mode.
Are Category 5 (CAT5) or higher cables used?
When connecting network devices, make sure to use CAT5 or higher cables. If other types of cables are
used, communications may not be carried out normally.
DHCP Dynamic Host Configuration Protocol.
Used for receiving an IP address from a
DHCP server.
UDP 67, 68
FTP (Port mode) File Transfer Protocol.
Used for receiving a data file from a FTP
server to upgrade the firmware version.
TCP 20, 21
Protocol Description TCP/UDP Default Port No.

2.2 VoIP Requirements Checklist
Information about IP Proprietary Telephones 17
2.2 VoIP Requirements Checklist
Use the following checklists to see if you can implement a VoIP network. The answers identified in
underlined bold-face letters are the required answers for the corresponding questions.
Bandwidth Assessment
Network Configuration
No. Question Answer Memo Ref.
1
Does the network have enough bandwidth to
support VoIP communications?
Make sure that there is more bandwidth available
for VoIP communications than the amount
actually required.
Yes
No
•IP network bandwidth
=kbps
•Available bandwidth for VoIP
=kbps
•Required bandwidth for VoIP
=kbps
p. 12
No. Question Answer Memo Ref.
2-a
Is the IP network a managed network?
Make sure to use a managed IP network such as
Frame Relay, Leased Line, or IP-VPN (Virtual
Private Network). The IP-EXT16 card is not
intended for use on the Internet (including an
Internet VPN).
Yes
No
Type of IP network:
p. 12
2-b Is it possible to have static IP addressing? Yes
No
p. 13
2-c Does only a single router provide IP-PT
access to the IP network?
Yes
No
p. 13
2-d Does the router not use network address
translation (NAT/NAPT)?
Yes
No
p. 14
2-e
Are the IP-EXT16 card and IP-PTs located
appropriately?
It is recommended to connect the card and IP-
PTs as close to each other on the network as
possible.
Ye s
No
p. 15

2.2 VoIP Requirements Checklist
18 Information about IP Proprietary Telephones
Network Devices
No. Question Answer Memo Ref.
3-a
Can the firewall pass packets from IP-PTs?
When a firewall is used, make sure to configure
the firewall appropriately to allow VoIP packets to
pass through the network without being blocked
by filtering.
Yes
No
Model of firewall:
p. 15
3-b
Are layer 2 or 3 switches used?
Do not use repeater hubs as they can increase
the network load.
Also note that the port of the switching hub that
connects to the IP-EXT16 card should be set to
operate under "Auto Negotiation" mode.
Yes
No
Model of switch:
p. 16
3-c Are Category 5 (CAT5) or higher cables used? Yes
No
p. 16

Information about IP Proprietary Telephones 19
Section 3
Installation
This section describes the physical installation process of the
IP-EXT16 card covering the following topics: (1) installing the
card in the Hybrid IP-PBX, and (2) connecting the card and IP-
PTs to the LAN.

3.1 Installing the IP-EXT16 Card in the Hybrid IP-PBX
20 Information about IP Proprietary Telephones
3.1 Installing the IP-EXT16 Card in the Hybrid IP-
PBX
3.1.1 Names and Locations
Indication Light (LED)
When the IP-EXT16 card is operating, each LED should show the status identified in bold-face letters
under normal conditions.
Indication Color Description
CARD STATUS Green/Red
Card status indication
•OFF: Power Off
•Green ON: Normal (all ports are idle)
•Green Flashing (60 times per minute): Normal (a port is in use)
•Red ON: Fault (includes reset)
•Red Flashing (60 times per minute): Out of Service
ONLINE Green
On-line status indication
•ON: At least one port is in use (an IP-PT is connected)
•OFF: No ports are in use (No IP-PTs are connected)
Note
If the LINK indicator is OFF, the ONLINE indicator will also be
OFF.
ALARM Red
Alarm indication
•ON: Alarm
•OFF: Normal
VoIP BUSY Green
Panasonic proprietary VoIP protocol process indication
•OFF: VoIP process inactive
•ON: VoIP process active
LEDs
RJ45
(100BASE-TX
Full Duplex)