Panasonic KX-TDE100 manual Bandwidth Requirements, Router Requirements

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1.2.3 Bandwidth Requirements

Router Requirements

Port Forwarding:

It may be necessary to set the NAT router so that it forwards the incoming packets to the IP address of the V-SIPGW16 card if all of the following conditions are met:

the PBX uses a STUN server;

a V-SIPGW16 card is located under a NAT router;

incoming packets are routed to a SIP Client port or NAT Voice (RTP) UDP port indicated in the [IP Packets to V-SIPGW16 Card] table above.

SIP-NAT Feature:

When a V-SIPGW16 card is located under a NAT router that supports the SIP-NAT feature*1, it is

recommended to disable this feature.

*1

When NAT is enabled, the router translates the IP address stored in the IP header and the port number stored in the UDP header.

 

 

When SIP-NAT is enabled, the router also translates the IP address and port number stored in SIP messages.

1.2.3 Bandwidth Requirements

When using the V-SIPGW16 card, you must ensure that the WAN has enough bandwidth to support VoIP communications. Refer to the table below and ensure that the sum of the required bandwidth for each channel is smaller than the amount the WAN (e.g., ADSL network) can provide.

Note that the amount in the table is only a guide. Subscribe to a network that has enough bandwidth. If the amount of bandwidth required for VoIP communications is larger than what the network can accommodate, speech quality will be compromised.

Required Bandwidth for Each Channel

The required bandwidth depends on what combination of CODECs and packet sending interval 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 CODECs varies as follows: G.711 (High), G.729 (Low)

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

The higher the speech quality the V-SIPGW16 card provides, the more bandwidth the WAN requires.

CODEC

 

 

 

 

Packet Sending Interval

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

10 ms

 

20 ms

 

30 ms

 

40 ms

 

50 ms

 

60 ms

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

G.711

110.4 kbps

 

87.2 kbps

 

79.5 kbps

 

75.6 kbps

 

73.3 kbps

 

71.7 kbps

 

 

 

 

 

 

 

 

 

 

 

 

 

 

G.729

54.4 kbps

 

31.2 kbps

 

23.5 kbps

 

19.6 kbps

 

17.3 kbps

 

15.7 kbps

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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Programming Manual for Virtual SIP Trunk Card

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Contents Programming Manual for Virtual SIP Trunk Card Pure IP-PBXTable of Contents Section Overview SIPGW16 Connection Outline Information about IP Telephony ServiceRequirements for Internet Telephony Service Information about IP Telephony Service WAN Important Notice for Subscription and Installation Port RequirementsFirewall Requirements Required Ports for Each ChannelRequired Bandwidth for Each Channel Bandwidth RequirementsRouter Requirements Specifications Items SpecificationSpecifications Preparations for PC Programming Maintenance Console Operating Instructions Installing and Starting the Maintenance ConsoleInstalling the Maintenance Console When country/area data do not match Installing and Starting the Maintenance Console Installing the V-SIPGW16 Card to the PBX Under Configuration, click SlotProgramming the V-SIPGW16 Card Programming Port Property Accessing Port PropertiesProgramming the V-SIPGW16 Card-Port Property Main Account User Name Authentication IDAuthentication Password Register Sending Interval RegisterRegister Ability Un-Register Ability when port INS 4 NATRegistrar Server-Name Registrar Server-IP AddressOption Stun Server-NameStun Server-IP Address Stun Server Port NumberSession Refresh Session Timer-Session Timer Ability Session Refresh Session Timer-Session Expire TimerSession Refresh Session Timer-Refresh Method Proxy-Require OptionFrom Header-User Part Calling PartyHeader Type Called Party Voice/FAX TypePacket Sampling Time G.711µ IP Codec Priority-1st, 2nd, 3rdPacket Sampling Time G.711A Packet Sampling Time G.729A Voice Activity Detection for G.711FAX Sending Method Maximum Bit RateRTP QoS-ToS Priority 9 RTP/RTCPRTP QoS Ability 10 T.38 FAX Udptl Error Correction Redundancy FAX Max DatagramFAX Udptl Redundancy count for T.30 messages FAX Udptl Redundancy count for data11 T.38 Option FAX Rate Management MethodFAX QoS Available FAX QoS-ToS Priority12 DSP FAX QoS-ToS TypeFAX QoS-DSCP FAX QoS-HEXSupplementary Service Cnip Send Cnip ReceiveValue Range Accessing Card Properties Programming the V-SIPGW16 Card-Card PropertyCard Property Programming Card PropertyDNS Retry Interval Timer Manual Preferred DNS Server IP AddressManual Alternate DNS Server IP Address Manual DNS Server Port NumberDNS SRV Record Resolve Ability Accessing Shelf Properties Programming the V-SIPGW16 Card-Shelf PropertyProgramming Shelf Property SIP Client Port NumberNAT Voice RTP UDP Port No NAT Keep Alive Packet Sending AbilityNAT Keep Alive Packet Type NAT Keep Alive Packet Sending IntervalStun External Address Detection Retry Counter Stun Resending IntervalSIP Called Party Number Check Ability Symmetric Response Routing AbilityTimer SIP T1Timer Section Maintenance Configuration Management Importing/Exporting V-SIPGW16 Provider ProfilesTo import provider profiles To export provider profilesTo transfer trace data to the PC SIPGW16 Protocol TraceTo save trace data to the SD Memory Card SIPGW16 Protocol Trace Index Index Programming Manual for Virtual SIP Trunk Card PSQX5028ZA KK1008TE0
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