Panasonic KX-TDA30 User manual

Model No. KX-TDA30/KX-TDA100
KX-TDA200/KX-TDA600
Hybrid IP-PBX
Information about
IP Proprietary Telephones
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-TDA30: PSMPR Software File Version 5.0000 or later
KX-TDA100/KX-TDA200: PMPR Software File Version 5.0000 or later
KX-TDA600: PLMPR Software File Version 5.0000 or later
In this manual, the suffix of each model number is omitted (e.g., KX-TDA100NE).

Table of Contents
1 Introduction ..............................................................................................3
1.1 Safety Notices ...................................................................................................................4
1.2 Overview ............................................................................................................................4
1.2.1 Using IP Proprietary Telephones on a Local Office LAN .................................................4
1.2.2 Using IP Proprietary Telephones on Local and Remote Office LANs ..............................6
1.3 Network Management .......................................................................................................8
1.3.1 DHCP (Dynamic Host Configuration Protocol) Server .....................................................8
1.3.2 VLAN (Virtual LAN) ..........................................................................................................9
1.4 Packet Control Features .................................................................................................11
1.4.1 Jitter Buffer .....................................................................................................................11
2 Guidance for VoIP Installation ..............................................................13
2.1 VoIP Requirements .........................................................................................................14
2.1.1 Bandwidth Assessment ..................................................................................................14
2.1.2 Network Configuration ....................................................................................................14
2.1.3 Network Devices ............................................................................................................17
2.2 VoIP Requirements Checklist ........................................................................................19
3 Installation ..............................................................................................21
3.1 Installing in the KX-TDA30 PBX .....................................................................................22
3.1.1 Names and Locations of IP-EXT4 Card .........................................................................22
3.1.2 Installation ......................................................................................................................23
3.2 Installing in the KX-TDA100/KX-TDA200/KX-TDA600 PBX ..........................................25
3.2.1 Names and Locations of IP-EXT16 Card .......................................................................25
3.2.2 Installation ......................................................................................................................26
3.3 Connecting to the LAN ...................................................................................................28
3.3.1 Connecting the IP-EXT Card ..........................................................................................28
3.3.2 Connecting the IP Proprietary Telephones ....................................................................31
4 Programming ..........................................................................................33
4.1 Programming the IP-EXT Card .......................................................................................34
4.1.1 Assigning the IP Addressing Information .......................................................................34
4.2 Programming the IP Proprietary Telephone .................................................................36
4.2.1 Assigning the IP Addressing Information .......................................................................36
4.2.2 Setting the VLAN Parameters ........................................................................................46
4.3 Setting the Diffserv Parameters .....................................................................................49
4.4 Configuration of IP Ports ................................................................................................52
4.5 Registering IP Proprietary Telephones .........................................................................58
4.5.1 Registering the IP-PTs ...................................................................................................58
4.5.2 De-registering IP-PTs .....................................................................................................59
A Troubleshooting .....................................................................................61
A.1 Troubleshooting ..............................................................................................................62
A.1.1 Operation ........................................................................................................................62
A.1.2 Error Messages ..............................................................................................................63
2 Information about IP Proprietary Telephones
Table of Contents

Section 1
Introduction
Information about IP Proprietary Telephones 3

1.1 Safety Notices
Please observe the safety notices in this manual in order to avoid danger to users or other people, and prevent
damage to property.
The notices are classified as follows, according to the severity of injury or damage:
WARNING This notice means that misuse could result in death or serious injury.
CAUTION This notice means that misuse could result in injury or damage to property.
1.2 Overview
1.2.1 Using IP Proprietary Telephones on a 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.
Note
The example illustrations in Sections 1 and 2 use the KX-TDA200 PBX and IP-EXT16 card.
DHCP Server
IP-PT
Extn. 101
IP-PT
Extn. 102
Switching
Hub
Hybrid IP-PBX
with an IP-EXT card
PC
Network Parameters
You will need to have the following IP addressing and QoS 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
4 Information about IP Proprietary Telephones
1.2.1 Using IP Proprietary Telephones on a Local Office LAN

Parameter Description
Example Entry
IP-PT Extn. 101 IP-PT Extn. 102
Subnet Mask Ad-
dress
Defines which digits of an IP address are
used for the network address and the host
address at each network location. The IP
addresses of the IP-PTs and 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
Default Gateway
Address
Identifies the IP address of the primary
gateway (typically a router or similar de-
vice) 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 de-
tails, refer to "1.3.2 VLAN (Virtual LAN)".
1
DiffServ (DS) Identifies the value for the DS field in the
header of IP packets, which determines
the priority given to packets travelling from
IP-PTs. For details, refer to "4.3 Setting
the Diffserv Parameters".
0.0
Information about IP Proprietary Telephones 5
1.2.1 Using IP Proprietary Telephones on a Local Office LAN

1.2.2 Using IP Proprietary Telephones on 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 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-EXT card
PC
IP Network
PC
Switching
Hub
Router
6 Information about IP Proprietary Telephones
1.2.2 Using IP Proprietary Telephones on Local and Remote Office LANs

Network Parameters
To use IP-PTs at the remote office, you will need to have the IP addressing and QoS information described
in "1.2.1 Using IP Proprietary Telephones on a Local Office LAN".
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
DiffServ (DS) 0.0
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.
Examples of recommended IP networks
•Digital Leased Line
•IP-VPN (Virtual Private Network)
•Frame Relay
Not recommended
•Internet (including an Internet VPN)
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 communication because transmission
delays and loss of data are likely to occur.
Information about IP Proprietary Telephones 7
1.2.2 Using IP Proprietary Telephones on Local and Remote Office LANs

1.3 Network Management
1.3.1 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 uses the received IP address information to register to the IP-EXT card.
Using a DHCP server allows you to centrally manage and automate the assignment of IP addresses.
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 address
IP address information
assigned to IP-PT IP-EXT Card
Request registration using the
received IP address information
Establish connection
When an IP-PT is connected
to the network
When the IP-PT is registered
to the IP-EXT card
1
2
3
4
Note
•The 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-EXT card cannot be assigned automatically using a DHCP server. This IP
address must be assigned manually by using the Maintenance Console (PC programming software of
the PBX). For details, refer to "4.1 Programming the IP-EXT Card".
•An IP-PT cannot request an IP address from a DHCP server on another LAN (connected through an
IP network). An IP-PT can only receive IP address information 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.
8 Information about IP Proprietary Telephones
1.3.1 DHCP (Dynamic Host Configuration Protocol) Server

1.3.2 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 using the VLAN feature to perform VoIP communication effectively.
Some IP-PTs (e.g., KX-NT136) are equipped with 2 ports, primary and secondary, for packet communication.
Allocating these ports to different VLANs enables you to split the paths for packets depending on whether the
packet contains voice signals or data.
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. When
sending 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 this way, an IP-PT with 2 ports can transmit voice packets from the primary port with higher priority than
other packets from the secondary port.
Hybrid IP-PBX
VLAN-capable Switching Hub
IP-PT with 2 ports
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
Note
•This VLAN feature complies with IEEE (Institute of Electrical and Electronics Engineers) 802.1Q.
•The PBX receives VLAN settings only from the connected switching hub. Therefore, VLAN settings for
the PBX must be assigned at the switching hub.
Information about IP Proprietary Telephones 9
1.3.2 VLAN (Virtual LAN)

•Some PC LAN cards allow VLAN settings to be assigned. However, when using a PC connected to an
IP-PT with 2 ports, 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.
•If you are using an IP-PT with a primary port only (e.g., KX-NT265), a PC cannot be connected to the
IP-PT.
10 Information about IP Proprietary Telephones
1.3.2 VLAN (Virtual LAN)

1.4 Packet Control Features
1.4.1 Jitter Buffer
When voice signals are packetised and transmitted, individual packets can take different paths through the
network and arrive at the destination at varied timings. This is referred to as "jitter", and it can cause degradation
in speech quality. To compensate for jitter problems, the "jitter buffer" accumulates the packets temporarily for
processing. The size of the Jitter Buffer can be set as required.
Information about IP Proprietary Telephones 11
1.4.1 Jitter Buffer

12 Information about IP Proprietary Telephones
1.4.1 Jitter Buffer

Section 2
Guidance for VoIP Installation
Information about IP Proprietary Telephones 13

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 CODECs and packet sending intervals 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.*1
•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.
*1 When the preferred CODEC of each party differs, the call will be established using the lower CODEC. For example, if the caller
prefers G.711 while the called party prefers G.729A, the call will be established using G.729A.
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 for Each IP-EXT Card
To allow all IP-PTs to make calls simultaneously, it is necessary to keep available the bandwidth required by
an IP-EXT card with the maximum number of IP-PTs connected.
Provided below is the formula to calculate the amount of bandwidth required for each card.
When using the IP-EXT4 card:
Required Bandwidth = (Required Bandwidth per IP-PT ´ 4)
When using the IP-EXT16 card:
Required Bandwidth = (Required Bandwidth per IP-PT ´ 16)
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.
14 Information about IP Proprietary Telephones
2.1.2 Network Configuration

Is it possible to have static IP addressing?
IP-PTs on the network must always communicate with each other through the IP-EXT 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-EXT 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-EXT card:
Router A
Default gateway of
the IP-PT:
Router A
Information about IP Proprietary Telephones 15
2.1.2 Network Configuration

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-EXT 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
16 Information about IP Proprietary Telephones
2.1.2 Network Configuration

Are the IP-EXT card and IP-PTs located appropriately?
Transmission delays can cause pauses and loss in VoIP communications. The more routers there are between
the IP-EXT card and IP-PTs, the longer the transmission delays. This is 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 traffic 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.
IP Network
RouterRouter
Switching
Hub
Switching
Hub
Switching
Hub
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-EXT) Real-time Transport Protocol.
Used for voice data transmission.
UDP 8000 to 8063
(IP-EXT16)
8000 to 8015
(IP-EXT4)
RTP (IP-PT) UDP 8000 to 8063
(IP-EXT16)
8000 to 8015
(IP-EXT4)
Maintenance (IP-EXT) Panasonic proprietary protocol.
Used for communication parameter ne-
gotiation with the PBX, download of
country/area data, confirmation of con-
nection with the PBX, and notification of
error messages and statistical informa-
tion to the PBX.
UDP 9300
Maintenance (IP-PT) UDP 9301
Information about IP Proprietary Telephones 17
2.1.3 Network Devices

Protocol Description TCP/UDP Default Port No.
MGCP (IP-EXT) Media Gateway Control Protocol.
Used for call control command data and
LCD/LED data transmission.
UDP 2727
MGCP (IP-PT) UDP 2427
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
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-EXT card to the LAN.
Use of layer 2 or 3 switches is also strongly recommended for connecting IP-PTs.
Note
Note that the port of the switching hub that connects to the IP-EXT card should be set to operate under
"Auto Negotiation" mode.
Are Category 5 (CAT 5) or higher cables used?
When connecting network devices, make sure to use CAT 5 or higher cables. If other types of cables are used,
communications may not be carried out normally.
18 Information about IP Proprietary Telephones
2.1.3 Network Devices

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
No. Question Answer Memo Ref.
1
Does the network have enough band-
width to support VoIP communications?
Make sure that there is more bandwidth available
for VoIP communications than the amount actual-
ly required.
Yes
No
•IP network bandwidth
= kbps
•Available bandwidth for VoIP
= kbps
•Required bandwidth for VoIP
= kbps
p. 14
Network Configuration
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 Pri-
vate Network). The IP-EXT card is not intended
for use on the Internet (including an Internet
VPN).
Yes
No
Type of IP network:
p. 14
2-b Is it possible to have static IP addressing? Yes
No p. 15
2-c Does only a single router provide IP-PT ac-
cess to the IP network?
Yes
No p. 15
2-d Does the router not use network address
translation (NAT/NAPT)?
Yes
No p. 16
2-e
Are the IP-EXT card and IP-PTs located appro-
priately?
It is recommended to connect the card and IP-PTs
as close to each other on the network as possible.
Yes
No p. 17
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. 17
Information about IP Proprietary Telephones 19
2.2 VoIP Requirements Checklist

No. Question Answer Memo Ref.
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-EXT card should be set to op-
erate under "Auto Negotiation" mode.
Yes
No
Model of switch:
p. 18
3-c Are Category 5 (CAT 5) or higher cables used? Yes
No p. 18
20 Information about IP Proprietary Telephones
2.2 VoIP Requirements Checklist