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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

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Содержание KX-TDA30

Страница 1: ...d 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 Ver...

Страница 2: ...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 Connect...

Страница 3: ...Section 1 Introduction Information about IP Proprietary Telephones 3...

Страница 4: ...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 10...

Страница 5: ...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 Identifi...

Страница 6: ...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...

Страница 7: ...rst 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...

Страница 8: ...s 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 cl...

Страница 9: ...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 VLA...

Страница 10: ...ssigned 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 ar...

Страница 11: ...etwork 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...

Страница 12: ...12 Information about IP Proprietary Telephones 1 4 1 Jitter Buffer...

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

Страница 14: ...DEC 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 COD...

Страница 15: ...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...

Страница 16: ...nnot 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 Route...

Страница 17: ...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 n...

Страница 18: ...an 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 la...

Страница 19: ...sed 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 addres...

Страница 20: ...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 o...

Страница 21: ...ection describes the physical installation process of each IP EXT card covering the following topics 1 installing the card in the PBX and 2 connecting the card and IP PTs to the LAN Information about...

Страница 22: ...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 ON LINE indicator will also be OFF ALARM Re...

Страница 23: ...Cover Plate CAUTION For safety reasons smooth the cut edges after removing the dummy cover plate 2 Position the card in the open slot making sure that the tabs on both sides of the card fit into place...

Страница 24: ...3 Insert the new extension bolt included with the card into the hole on the card and tighten it to secure the card Extension Bolt 24 Information about IP Proprietary Telephones 3 1 2 Installation...

Страница 25: ...le 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...

Страница 26: ...eing transmitted OFF No data transmitted 3 2 2 Installation Install the IP EXT16 card in a free slot of the KX TDA100 KX TDA200 KX TDA600 PBX Note The illustrations of the PBX shown in the installatio...

Страница 27: ...that the card engages securely with the connector on the back board Release Lever Back Board 3 Turn the 2 screws clockwise to fix the card in place Screws Note Make sure the screws are tightened to e...

Страница 28: ...on the network make sure that the IP EXT card is connected to a layer 2 switch that is IEEE 802 1Q compliant and that is configured for VLANs In addition the port of the switching hub to which the IP...

Страница 29: ...tor of the card 4 Connect the other end of the cable to the switching hub Connecting to a switching hub IP EXT4 in the KX TDA30 PC IP PT with a primary port only PC IP PT with 2 ports Ethernet Straigh...

Страница 30: ...00 KX TDA200 KX TDA600 PC IP PT with a primary port only Ethernet Straight Cable Router Switching Hub RJ45 PC IP PT with 2 ports Switching Hub 30 Information about IP Proprietary Telephones 3 3 1 Conn...

Страница 31: ...LAN connect it to a switching hub Note Use an Ethernet straight cable with an RJ45 connector to connect the IP PT to a switching hub The cable should be a 100BASE TX CAT 5 Category 5 or higher cable W...

Страница 32: ...rd To Wall Socket Nub Hook Connecting a PC to an IP PT except KX NT265 You can connect a PC to an IP PT by using the IP PT s secondary port In this case only a single port from the LAN s network inter...

Страница 33: ...describes the process of programming the IP EXT card and IP PTs covering the following topics 1 setting network parameters for the card and IP PTs and 2 registering the IP PTs to the PBX Information...

Страница 34: ...ion before programming appears a Carefully read this important additional information which includes updates to this and other manuals b Click OK to close this window 3 a Enter the Installer Level Pro...

Страница 35: ...ote To activate any changes made in step 8 it is necessary to set all installed IP EXT cards to out of service status OUS then back to in service status INS 9 Move the mouse pointer over the IP EXT ca...

Страница 36: ...lly Other addresses i e the IP address of the IP PT the subnet mask address and the default gateway address will be assigned automatically by the DHCP server Follow the procedure below for all IP PTs...

Страница 37: ...the Secondary PBX optional for KX NT300 with software version 2 00 or later only PBX IP Address KX NT300 with software version 2 00 or later only Select Secondary PBX ENTER ENTER To the VLAN settings...

Страница 38: ...PBX VOL Press SP PHONE twice Press SP PHONE To the VLAN settings The IP PT will reboot and establish connection to the network To end programming To set VLAN parameters OR Press STORE Press VOLUME to...

Страница 39: ...twice to return to the Menu screen Select PBX IP Address Press SP PHONE Press SP PHONE Press STORE Select PBX Press SP PHONE Press SP PHONE Select Primary PBX Press SP PHONE Select Secondary PBX Pres...

Страница 40: ...on to the secondary PBX after programming 1 turn the IP PT s power off and 2 hold the STORE button and 2 key while turning the power on 40 Information about IP Proprietary Telephones 4 2 1 Assigning t...

Страница 41: ...KX NT300 series except KX NT321 Select Network ENTER Select Disable for DHCP setting ENTER IP Address 1 ENTER To set the IP address of the IP PT To set the subnet mask address Select Default Gateway...

Страница 42: ...amming To set VLAN parameters OR The IP PT will reboot and establish connection to the network Return to the Menu screen Return to the Menu screen 1 Valid IP address range 1 0 0 0 to 223 255 255 255 2...

Страница 43: ...ect Default GW VOL Press SP PHONE Press SP PHONE Press HOLD twice to return to the Menu screen HOLD Press VOLUME to select PBX VOL Press SP PHONE twice Press SP PHONE To the VLAN settings The IP PT wi...

Страница 44: ...efault GW Press SP PHONE Press SP PHONE Continued on next page Press HOLD to return to the Menu screen To enter the IP address of the IP EXT card in the Primary PBX PBX IP Address Select PBX IP Addres...

Страница 45: ...range 1 0 0 0 to 223 255 255 255 2 Valid subnet mask address range 0 255 0 255 0 255 0 255 except 0 0 0 0 and 255 255 255 255 3 Valid IP address range 1 0 0 0 to 223 255 255 255 Note To confirm the co...

Страница 46: ...STORE STORE To set the VLAN ID for the primary port To set the VLAN ID for the secondary port To end programming 0 7 1 4094 Select Primary port ENTER VLAN ID ENTER VLAN Priority 1 ENTER 1 4094 Select...

Страница 47: ...he network After assigning the IP addresses Press VOLUME to select VLAN VOL Press SP PHONE Press VOLUME to select VLAN Enable VOL Press SP PHONE Press SP PHONE Press SP PHONE Press STORE Press HOLD to...

Страница 48: ...D for the primary port 0 7 1 4094 Select Priority Select VLAN Primary Press SP PHONE Select VLAN ID Press SP PHONE To set the VLAN ID for the secondary port VLAN ID VLAN Priority 1 1 4094 0 7 Select V...

Страница 49: ...set the parameters KX NT300 series except KX NT321 Select Diffserv ENTER To set the DS field value for the primary port To set the DS field value for the secondary port To end programming Select Prima...

Страница 50: ...he network To end programming Press STORE Press HOLD to return to the Menu screen Select Primary Port Diffserv 0 0 7 7 Press SP PHONE Press SP PHONE Select DS Enable Press SP PHONE Press SP PHONE Pres...

Страница 51: ...Press SP PHONE Press VOLUME to select Diffserv VOL Press SP PHONE The IP PT will reboot and establish connection to the network To end programming Press STORE Press HOLD to return to the Menu screen H...

Страница 52: ...configure the port number of PTAP Ports To start programming Select PTAP Server Port Select PTAP Server Port Select Primary PBX Select Secondary PBX To configure the port number of DHCP Ports ENTER 10...

Страница 53: ...rver Ctrl Port ENTER 1024 65535 ENTER Port No Select FTP Client Ctrl Port 1024 65535 ENTER ENTER Port No Select FTP Client Data Port Return to the Menu screen The IP PT will reboot and establish conne...

Страница 54: ...ect Primary PBX Press SP PHONE Press SP PHONE 1024 65535 Port No Press SP PHONE Press SP PHONE 67 1024 65535 Port No Press SP PHONE Press SP PHONE 68 1024 65535 Port No Press SP PHONE Press SP PHONE P...

Страница 55: ...Menu screen To configure the port number of FTP Ports Select FTP Server Ctrl 21 1024 65535 Port No Select FTP Client Ctrl 1024 65535 Port No Select FTP Client Data 1024 65535 Port No Press SP PHONE Pr...

Страница 56: ...ess SP PHONE Press SP PHONE 7678 Password 1024 65535 Port No Press VOLUME to select PTAP Client VOL Press SP PHONE Press SP PHONE 1024 65535 Port No Press VOLUME to select DHCP Server VOL Press SP PHO...

Страница 57: ...Note If you wish to change the port number back to default enter 0 as the port number for the desired port Information about IP Proprietary Telephones 57 4 4 Configuration of IP Ports...

Страница 58: ...3 a Highlight numbers and click the right arrow to select them for registration b Click Next A screen will appear with information on the current IP PT extension number and index number for programmi...

Страница 59: ...atus of the IP PT will update to show None Forced De registration Follow the steps below to forcibly de register the IP PT when normal de registration was unsuccessful 1 a Under Configuration click Sl...

Страница 60: ...Once the IP PT is successfully de registered the status of the IP PT will update to show None 60 Information about IP Proprietary Telephones 4 5 2 De registering IP PTs...

Страница 61: ...Appendix A Troubleshooting Information about IP Proprietary Telephones 61...

Страница 62: ...server set the IP address subnet mask address and enter the PBX IP address If necessary also enter the IP address of the default gateway When using a DHCP server enter the PBX IP address The IP PT can...

Страница 63: ...ERR 1051 0000 SOFTWARE ERROR Displays error and stops operating PBX software version error Consult your network admin istrator ERR 2001 XXXX SYSTEM ERROR Resets and displays error for 5 seconds while...

Страница 64: ...le starting up Error information from the PBX MGCP server Consult your network admin istrator ERR 3001 0000 HARDWARE ERROR Displays error until reset the IP PT Communication error with sub CPU If this...

Страница 65: ...Information about IP Proprietary Telephones 65 Notes...

Страница 66: ...This material is copyrighted by Panasonic Communications Co Ltd and may be reproduced for internal use only All other reproduction in whole or in part is prohibited without the written consent of Pana...

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