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2.1  VoIP Requirements

2.1.1  Bandwidth Assessment

When using the IP telephones and V-IPGW16 card, 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
more 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.

Bandwidth Assessment for Virtual IP Extension Card

Required Bandwidth per IP telephone 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 codecs and packet sending intervals, in terms of speech quality:

•

The speech quality of the codecs varies as follows: (High) G.722, G.711, G.729A (Low)

*1

•

The shorter the packet sending interval, the higher the speech quality.

•

The higher the speech quality the IP telephones provide, the more bandwidth the IP telephones 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.722

*1

/G.711

87.2 kbps

79.5 kbps

—

—

G.729A

31.2 kbps

23.5 kbps

19.6 kbps

15.7 kbps

*1

G.722 is only available for the KX-NT300 series IP-PTs and some SIP Extensions that support this codec during peer-to-peer
communication. For details, refer to "13.1.8  Peer-to-Peer Connection" in the Feature Manual.

Required Bandwidth for Each Virtual IP Extension Card

To allow all IP telephones to make calls simultaneously, it is necessary to keep available the bandwidth required
by a virtual IP Extension card with the maximum number of IP telephones connected.
Provided below is the formula to calculate the amount of bandwidth required for each virtual IP Extension card.

Required Bandwidth

 = (Required Bandwidth per IP telephone 

´

 32)

Bandwidth Assessment for V-IPGW16 Card

Required Bandwidth for One VoIP Channel

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 the 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 V-IPGW16 card provides, the more bandwidth the card requires.

14

IP Networking Guide

Document Version  2009-12  

2.1.1 Bandwidth Assessment

Содержание KX-NCP500

Страница 1: ...this manual for future use KX NCP500 KX NCP1000 PBMPR Software File Version 2 0200 or later Pure IP PBX Document Version 2009 12 IP Networking Guide Model No KX NCP500 KX NCP1000 3DQDVRQLF 7HOHSKRQH...

Страница 2: ...Virtual IP Cards to the PBX 32 4 1 2 Installing Additional Activation Keys 33 4 2 Programming the Virtual 16 Channel VoIP Gateway Card 36 4 2 1 Assigning the Hunt Pattern 36 4 2 2 Programming the Add...

Страница 3: ...Section 1 Introduction Document Version 2009 12 IP Networking Guide 3...

Страница 4: ...ake place over conventional telephone network the high cost of long distance communication is virtually eliminated The following diagrams illustrate VoIP network with i a remote office LAN and ii anot...

Страница 5: ...ith Another PBX IP Network Router Switching Hub Router Switching Hub PBX PBX Branch Branch Headquarters Headquarters Document Version 2009 12 IP Networking Guide 5 1 1 1 Establishing a VoIP Network wi...

Страница 6: ...etails refer to 1 2 2 VLAN Virtual LAN DiffServ DS Identifies the value for the DS field in the header of IP packets which determines the priority given to packets traveling from IP telephones For det...

Страница 7: ...P address information to the IPCMPR DSP cards 2 Request IP address information 3 4 IP Telephone DHCP Server IPCMPR DSP Cards Note The PBX is not able to act as a DHCP server To use the DHCP client fun...

Страница 8: ...VLAN settings for the secondary port apply to data transmitted by a PC connected to the IP telephone When sending packets the IP telephone can attach information on which VLAN the packets are to be tr...

Страница 9: ...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 telephone with a primary port only e g...

Страница 10: ...eeper Available and 3 10 1 1 Slot Shelf Property Virtual IP Gateway GK Settings in the PC Programming Manual After programming the V IPGW16 card attempts to register with the gatekeeper using registra...

Страница 11: ...g sent to the network This feature can be enabled or disabled for each available codec G 711 and G 729A To configure the VAD feature refer to the appropriate section in the PC Programming Manual Note...

Страница 12: ...12 IP Networking Guide Document Version 2009 12 1 3 2 Voice Activity Detection VAD...

Страница 13: ...Section 2 Guidance for VoIP Installation Document Version 2009 12 IP Networking Guide 13...

Страница 14: ...e 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...

Страница 15: ...ps per channel In this case the required bandwidth will be as follows Required Bandwidth 2 87 2 16 2 31 2 611 2 kbps Therefore inform your network administrator and make sure that the network can supp...

Страница 16: ...n this case the equation for bandwidth calculation based on the previous example will change as follows Required Bandwidth No of Fax Machines Required Bandwidth for the G 711 codec 10 No of Fax Machin...

Страница 17: ...which must be programmed to each IP telephone on the network Note When a DHCP server which automates IP addressing of devices on the network is not used static IP addressing must also be enabled for...

Страница 18: ...t 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 Addres...

Страница 19: ...roduced when calls are made through multiple IP networks as shown below therefore it is recommended that you avoid establishing a VoIP network in this fashion IP Network 1 IP Network 2 PSTN PRI QSIG e...

Страница 20: ...the points that should be evaluated Can the firewall pass packets appropriately If the VoIP network contains a firewall the firewall must be configured appropriately to allow VoIP packets listed in th...

Страница 21: ...gnaling TCP 1720 H 225 0 RAS UDP 1719 QSIG Connectionless Tunneling TCP 1718 QSIG Connectionless Tunneling UDP 1717 Are layer 2 or higher switches used Use of repeater hubs can increase the network lo...

Страница 22: ...r of IP packets The V IPGW16 card has the ability to set the ToS field of outgoing voice packets When the card is appropriately configured the router can give voice packets from the card higher priori...

Страница 23: ...P 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 IPCMPR card is not intended for use on the Internet including an...

Страница 24: ...hubs as they can increase the network load Also note that the port of the switching hub that connects to the IPCMPR card should be set to operate under Auto Negotiation mode Yes No Model of switch p...

Страница 25: ...Section 3 Connection to the LAN This section describes the process of connecting the IPCMPR card and IP telephones to the LAN Document Version 2009 12 IP Networking Guide 25...

Страница 26: ...ching hub that connects to the IPCMPR card to operate under Auto Negotiation mode When using the VLAN feature on the network make sure that the IPCMPR card is connected to a layer 2 switch that is IEE...

Страница 27: ...to a switching hub IP Softphone SIP Extension Ethernet Straight Cable Router Switching Hub PC IP PT with 2 ports Switching Hub LAN Port Document Version 2009 12 IP Networking Guide 27 3 1 Connecting...

Страница 28: ...BASE TX CAT 5 Category 5 or higher cable When using the VLAN feature on the network make sure that the switching hub to be connected is IEEE 802 1Q compliant and is configured for VLANs In addition th...

Страница 29: ...network through the network cable In this case no AC adaptor is needed for the IP telephones However if PoE is not available you will need to connect an AC adaptor to the IP telephone Note Use only th...

Страница 30: ...Only a PC can be connected to the secondary port of an IP telephone Other IP telephones including IP PTs or network devices such as routers or switching hubs cannot be connected The secondary port doe...

Страница 31: ...Section 4 Programming Document Version 2009 12 IP Networking Guide 31...

Страница 32: ...n c Click Select Shelf 2 a Click on the name of the desired card to install in the list An image of the card will be displayed b Click and drag the image of the card to the Extension or Trunk slot dep...

Страница 33: ...on key number and registration ID to download the activation key that enables the use of 4 IP CO lines KX NCS3201 1 IP Softphone IP PT Provides the activation key number and registration ID to downloa...

Страница 34: ...ic 40users Provides the activation key number and registration ID to download the activation key that enables the use of CA Basic for 40 users KX NCS2149 CA Basic 128users Provides the activation key...

Страница 35: ...ecessary to program the number of provided IP Trunk channels to be used for H 323 CO lines By default all of the provided IP Trunk channels will be used for SIP CO lines Similarly you can program how...

Страница 36: ...nternational treaty provisions RADVISION and its suppliers retain all rights not expressly granted 4 2 1 Assigning the Hunt Pattern The hunt pattern determines how to route incoming calls through virt...

Страница 37: ...led V IPGW16 card A menu will be shown under the mouse pointer e Click Shelf Property f Click GW Settings 2 In the Main tab do the following to configure the gateway entry for the remote PBX a In the...

Страница 38: ...e Remaining Number of Digits box type a number of digits to dial following the leading number d In GW No GW Group Selection select GW No e In the GW No box select 1 the gateway entry for the destinati...

Страница 39: ...tion click Slot b Move the mouse pointer over the PBX image of IPCMPR Virtual Slot at the top of the screen c Click Select Shelf d Move the mouse pointer over the installed V IPGW16 card to display th...

Страница 40: ...ation pattern if necessary g Click OK 5 a From the system menu click Configuration b Click Slot c Move the mouse pointer over the installed V IPGW16 card to display the menu of options d Click Ous You...

Страница 41: ...ck Port Property Confirm that all ports are in service INS Note When a V IPGW16 card is installed 8 ports 1 8 are available When two V IPGW16 cards are installed 16 ports 1 16 are available 2 a From t...

Страница 42: ...onfirmation message e Click Yes f Move the mouse pointer over the installed V IPGW16 card to display the menu of options g Click Shelf Property 6 a Click the Outgoing Call tab b Select the preferred E...

Страница 43: ...Note For details about network parameter settings refer to the relevant sections of the PC Programming Manual Document Version 2009 12 IP Networking Guide 43 4 2 3 Programming the Network Settings...

Страница 44: ...r the Installer Level Programmer Code default INSTALLER b Click OK 5 Click Connect 6 a Select KX NCP500 1000 from PBX Model b Select the LAN or RS 232C tab depending on the type of PC connection with...

Страница 45: ...om the system menu 1 The IP addressing information for the IPCMPR card can also be assigned from the system menu a Under Configuration click Slot b Move the mouse pointer over the IPCMPR card A menu w...

Страница 46: ...er on your network may not be running or a network failure may have occurred If the DHCP server is not available change the DHCP Client setting to Disable and set fixed IP addresses then restart the P...

Страница 47: ...default gateway address to the IP PT The PBX IP address can also be assigned automatically to the IP PT in process of being registered to the PBX For details about registering the IP PT refer to 4 5...

Страница 48: ...Supply power to the IP PT To enter the IP address of the Secondary PBX optional for software version 2 00 or later only PBX IP Address Software version 2 00 or later only Select Secondary PBX ENTER EN...

Страница 49: ...e 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 Press SP PHONE To enter th...

Страница 50: ...ramming Supply power to the IP PT Press HOLD to return to the Menu screen HOLD Press VOLUME to select PBX Press SP PHONE twice Press SP PHONE To the VLAN settings The IP PT will reboot and can then be...

Страница 51: ...0 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 Select Default Gateway ENTER Default Gateway Address 3 ENTER T...

Страница 52: ...Menu screen Return to the Menu screen Continued from previous page 1 Valid IP address 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...

Страница 53: ...Press SP PHONE twice Press SP PHONE Select Subnet Mask Press SP PHONE Press SP PHONE Select Default GW Press SP PHONE Press SP PHONE Press HOLD to return to the Menu screen To enter the IP address of...

Страница 54: ...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 connection to the secondary...

Страница 55: ...ME to select Subnet Mask Press SP PHONE Press SP PHONE Press VOLUME to select Default GW Press SP PHONE Press SP PHONE To the VLAN settings The IP PT will reboot and can then be registered to the PBX...

Страница 56: ...ss 1 ENTER To set the IP address of the IP PT To set the subnet mask address To set the default gateway address Select Default Gateway ENTER Default Gateway Address 3 ENTER ENTER Subnet Mask Address 2...

Страница 57: ...To set VLAN parameters OR The IP PT will reboot and can then be registered to the PBX 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 Valid su...

Страница 58: ...k Press SP PHONE Press SP PHONE Select Default 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 IPCMPR card in the Primary...

Страница 59: ...nge 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 conn...

Страница 60: ...Mask Press SP PHONE Press SP PHONE Press VOLUME to select Default GW Press SP PHONE Press SP PHONE Press HOLD twice to return to the Menu screen HOLD Press VOLUME to select PBX Press SP PHONE twice P...

Страница 61: ...ing information automatically To set the IP address of the KX HGT100 To start programming Supply power to the KX HGT100 Press PROGRAM Select Set network Press OK Select DHCP Press OK To end programmin...

Страница 62: ...ramming Press PROGRAM IP Address 1 Press OK Press OK Subnet Mask Address 2 Default Gateway Address 3 Press OK Press PROGRAM C Tone 1 Valid IP address range 1 0 0 0 to 223 255 255 255 2 Valid subnet ma...

Страница 63: ...when assigning IP addressing information All the IP addressing information must be assigned manually For instructions refer to the documentation of the SIP Extension Note SIP Extensions can only rece...

Страница 64: ...Refer to the documentation of your SIP Extension for instructions KX NT300 series except KX NT321 Select VLAN ENTER ENTER VLAN ID ENTER VLAN Priority ENTER Press STORE STORE To set the VLAN ID for the...

Страница 65: ...primary port 0 7 1 4094 Select Priority Select VLAN Primary Press SP PHONE 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 Se...

Страница 66: ...o the PBX After assigning the IP addresses Press VOLUME to select VLAN Press SP PHONE Press VOLUME to select VLAN Enable Press SP PHONE Press SP PHONE Press SP PHONE Press STORE Press HOLD to return t...

Страница 67: ...NT400 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 Primary Port ENTER...

Страница 68: ...the PBX 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 Press...

Страница 69: ...ress SP PHONE Press VOLUME to select Diffserv Press SP PHONE The IP PT will reboot and can then be registered to the PBX To end programming Press STORE Press HOLD to return to the Menu screen HOLD Pre...

Страница 70: ...work administrator to check whether the configuration of the IP ports is required Follow the procedure below to configure the port number of the IP ports Note For details for the KX NT400 refer to the...

Страница 71: ...number of DHCP Ports ENTER 1024 65535 ENTER Port No Select PTAP Client Port ENTER 67 1024 65535 ENTER Port No Select DHCP Server Port ENTER 68 1024 65535 ENTER Port No Select DHCP Client Port Press SE...

Страница 72: ...ver 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 can then be regi...

Страница 73: ...t 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 Pre...

Страница 74: ...nu 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 Pres...

Страница 75: ...Press SP PHONE Press SP PHONE 7678 Password 1024 65535 Port No Press VOLUME to select PTAP Client Press SP PHONE Press SP PHONE 1024 65535 Port No Press VOLUME to select DHCP Server Press SP PHONE Pr...

Страница 76: ...Note If you wish to change the port number back to default enter 0 as the port number for the desired port 76 IP Networking Guide Document Version 2009 12 4 4 4 Configuration of IP Ports...

Страница 77: ...P PT by entering the MAC address directly 2 If the Connection column for the port is INS click INS and then click OUS on the dialog box to change the port s status 3 Enter the MAC address of the IP PT...

Страница 78: ...Completed Click Close Once the IP PT is successfully registered the status of the IP PT will update to show Registered Registration of SIP Extensions 1 a Under Configuration click Slot b Move the mous...

Страница 79: ...reen appears f Click INS g Click OK Note Alternatively it is possible to set an extension number as a password for each SIP Extension automatically In order to set the password automatically do the fo...

Страница 80: ...hich should consist of the extension number and the IP address of the IPCMPR card e g 350 192 168 0 101 For KX HGT100 SIP Telephones It is necessary to program the KX HGT100 through Web Programming to...

Страница 81: ...ies 4 a Select Use the following IP address b In the IP address box type 192 168 0 201 This is an example entry Type an IP address different from that assigned to the KX HGT100 in 4 4 1 Assigning the...

Страница 82: ...boxes b Click OK Your PC is now ready for programming through direct access to the KX HGT100 When Using a Proxy Server If the network has a proxy server installed you must apply the appropriate proxy...

Страница 83: ...Telephone Number and SIP ID boxes type the extension number c In the SIP Password box type the password d In the Proxy Address Registrar Address and SIP Domain boxes type the IP address of the IPCMPR...

Страница 84: ...ork signal IP Address expired IP address lease time from the DHCP server has expired IP Address conflict The IP address of the KX HGT100 conflicts with other network devices Model Specifies the model...

Страница 85: ...Registrar Address SIP Domain 2 Specifies the IP address of the IPCMPR card Register Expire Specifies the length of time 1 4294967295 seconds that the KX HGT100 sends the REGISTER message to the PBX 1...

Страница 86: ...ed One time Caller ID Deny Code Specifies the number to dial when preventing the calling party s telephone number from being displayed on the called party s telephone for outside calls 1 One time Call...

Страница 87: ...ct To configure the Telephone Number SIP ID Press PROGRAM To start programming Hold INFORMATION for 3 seconds while Save speed dial is displayed To end programming Press PROGRAM Select desired paramet...

Страница 88: ...k De registration A dialog box will appear Registered extension numbers and names are displayed on the left 3 a Highlight numbers and names and click the right arrow to select them for de registration...

Страница 89: ...erty 2 Click Forced De registration A dialog box will appear Registered extension numbers and names are displayed on the left 3 a Highlight numbers and names and click the right arrow to select them f...

Страница 90: ...Slot b Move the mouse pointer over the PBX image of IPCMPR Virtual Slot at the top of the screen c Click Select Shelf d Move the mouse pointer over the V SIPEXT32 card A menu will be shown under the m...

Страница 91: ...Section 5 Appendix Document Version 2009 12 IP Networking Guide 91...

Страница 92: ...x Changed Contents 4 2 Programming the Virtual 16 Channel VoIP Gateway Card 4 3 Programming the IPCMPR Card 4 4 Programming the IP Telephones 4 5 Registering IP Telephones 92 IP Networking Guide Docum...

Страница 93: ...vices 4 3 1 Assigning the IP Addressing Information 4 4 2 Setting the VLAN Parameters 4 4 3 Setting the Diffserv Parameters 4 4 4 Configuration of IP Ports 4 5 1 Registering IP Telephones 4 5 2 De reg...

Страница 94: ...r ERR 1005 0000 HARDWARE ERROR Displays error and stops operating SDRAM error ERR 1006 0000 HARDWARE ERROR Displays error and stops operating SRAM error ERR 1007 0000 HARDWARE ERROR Displays error and...

Страница 95: ...009 XXXX MGCP SERVER REJECTION Resets and displays error for 5 seconds while starting up Error information from the PBX MGCP server Consult your network administrator ERR 2010 0000 HARDWARE ERROR Rese...

Страница 96: ...internal use only All other reproduction in whole or in part is prohibited without the written consent of Panasonic System Networks Co Ltd Panasonic System Networks Co Ltd 2009 PSQX4748XA KK0908KE2129...

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