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KX-TDA200/100 System (Ver.1.0)

KX-TDA200/100 System (Ver.1.0). Panasonic Communications Co., Ltd. Network Business Company Edition 1.1 27 Jan., 2003. Chapter 12.1 VoIP General. Chapter 12.1. VoIP. 1. What is VoIP? 1.1 What is the advantage? 1.2 What are characteristics?

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KX-TDA200/100 System (Ver.1.0)

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  1. KX-TDA200/100 System(Ver.1.0) Panasonic Communications Co., Ltd. Network Business Company Edition 1.1 27 Jan., 2003 Chapter 12.1VoIP General

  2. Chapter 12.1 VoIP 1. What is VoIP? 1.1 What is the advantage? 1.2 What are characteristics? 1.3 What is the difference VoXX? 2. What is the existing “IP Telephone Service”? 3. What is “IP network” for VoIP? 4. What is the protocol of ITU-T H.323? 5. What is the connection type of VoIP? 6. What is “KX-TDA0480(VoIP Gateway Card)? 6.1 Where are the benefits of KX-TDA0480? 6.2 How is the connection of KX-TDA0480? 6.3 How is the construction of KX-TDA0480? 6.4 What are the KX-TDA0480 Functions? 7. What are Router Functions for the QOS?

  3. 1.What is “VoIP” ? Voice over IP (Internet Protocol) is the technology for transmission of voice over IP network. IP Connectionless communication Voice signal -> Packet data Packet data -> Voice signal IP Network VoIP-GW VoIP-GW VoIP is "One of the leased line” in the current state.

  4. Background TCP/IP is the de facto standard of Data Communication Analog Communication Digital Communication Data(Packet) Communication T1/E1/ISDN VoIP(VoFR/VoATM) Internet increases explosively, and has gained in popularity. And as Data (IP) traffic increases, it can pass the voice traffic.

  5. Traffic of Communication [Tera Byte ] Data communication 700,000 Number of Host Computer X1,000 600,000 Voice 500,000 400,000 ‘97 ‘98 ‘99 ‘00 ‘01 ‘02 ‘03 300,000 200,000 100,000 0 1999 2000 2001 2002 1997 1998 2003 [Year] Users of the Internet: 3 Billion in the world / 30 Million in Japan

  6. IP-GW IP-GW Fire wall (Proxy Server) Fire wall (Proxy Server) 1.1 What is the advantage of VoIP? It is possible toreduce the cost of line and telephone calls by the integration of voice and data. Public Line Leased Line PBX PBX PT/SLT PT/SLT IP-Network SW HUB Router Router SW HUB The capacity of the line increases for voice data

  7. 1.2 What are Characteristics of VoIP? (1)Connectionless communication(IP,UDP) The communication route cannot be secured. (2)Best effort type communication The quality is not guaranteed, when the traffic becomes congested. (Telephone network is Guarantee Type communication) (3)QOS(Service quality) is weak - Delay Time - Jitter - Packet loss Therefore, it is necessary to implement the VoIP in the network where QoS is controlled. (4)Overhead is large • The header of the IP is long compared with the • header of the ATM and the Frame Relay. • Therefore, it reduces the delay time by the router • in the header compression.

  8. 1.3 What is the difference with VoXX?(1/2) Good Quality of Voice Size of Network Large <Reason why VoIP is activated> (1) IP is based on high layer, and it is possible to use without the restriction of the line type. (2)The range of application is wide and the extendibility is also high. (3)The quality of the VoIP device improved, and the price became reasonable.

  9. IP-GW IP-GW Router 1.3 What is the difference with VoXX?(2/2) (1) VoIP VoIP over FR PBX V I F PT/SLT Layer4 Layer3 Layer2 Router or VoIP over ATM V I A Layer4 Layer3 Layer2 FR/ATM Line FR/ATM Line (2) VoFR PBX V F Layer3 Layer2 PT/SLT FRAD FRAD FR Line FR Line Frame Relay or ATM Network (3) VoATM PBX ATM Line ATM Line A V PT/SLT Layer3 Layer2 ATM ATM

  10. ISP ISP Internet Internet 2.What is the existing “IP Telephone Service” ?(1/2) (1) Internet Telephone Service(PC to PC) Application -Netscape Navigator -Cool Talk -Internet Phone Broadband line(ADSL etc.) (2) IP telephone service Proper network Local Switch Local Switch Router Router

  11. IP-GW IP-GW IP-GW IP-GW Router Router Router 2.What is the existng “IP Telephone Service”?(2/2) (3) IP-VPN Service/MPLS(Multi Protocol Label Switching) PBX PT/SLT IP-VPN MPLS:Connection type service and has the security function (4) Leased line Service PBX Digital Leased line PT/SLT Router

  12. 3.What is “IP network” for VoIP? (1) Digital Leased Line (2) IP-VPN (3) Frame Relay(VoIP over FR) (4) Internet We don’t recommend to use, because Internet is the network type of “Best effort ” and QoS is not guaranteed by the following reasons. - It is not possible to control the network. • - The delay is large. • - Non-symmetry network.

  13. 4.What is the protocol of ITU-T H.323? (1) History of H.323 - V1(NOV., 1996) Visual telephone systems and equipment for local area networks which provide a non-guaranteed quality of service. - V2(FEB.,1998) Packet-based multimedia communication systems. (2) H.323 is used as a control protocol of the IP telephone. H.323 is the current main system for making the network IP in the future.

  14. H.323 System configuration -Address Conversion -Control t the recognition of connection -Control the Securing the bandwidth -Control the zone -Call control - Permission of Call requirement T : Terminal GK : Gatekeeper GW : Gateway MCU : Multi point Control Unit R : Router Voice Graphics data Control Protocol Conversion T1 GK GW T4 T5 T2 T3 R MCU R -Control the Multi Point connection -Processing of the Multi Point Signaling

  15. H.323 Call connection proceeding <Example> Endpoint 1 Gatekeeper Endpoint 2 ARQ(1) ACF/ARJ(2) Set-up(3) Call proceeding(4) ARQ(5) ACF/ARJ(6) Alerting(7) Connect(8) ARQ : Admission Request ACF : Admission Confirm ARJ : Admission Reject RAS(Registration/Admission/Status) Messages Call Signaling Message

  16. H.323 Protocol Stack AV APR. Call Control and Management Data APR. 7 Voice Video H.225.0 (RTCP) H.225.0 (RAS) H.225.0 (Q.931) H.245. T.124 T.125 H.261 G.711 G.722 G.723G.728 G729 6 H.225(RTP) 5 4 UDP TCP T.123 Network Layer(IP) 3 2 Link Layer(MAC/PPP/Q.922) Physical Layer 1 RTP( Real time Transport Protocol ) This treats the time stamp and the order number to take time synchronization by transmitting and receiving. :Used for the VoIP RTCP( Real time Control Protocol ) This controls the RTP transmission.

  17. What standards apply to H.323? Call signaling and control H.323 - Packet-based multimedia communications systems H.225 - call control protocol H.235 - security H.245 - media control protocol Q.931 - digital subscriber signaling H.450.1 - Generic functional protocol for the support of supplementary services in H.323 H323 Annexes Annex D - Real Time fax over H.323 Annex E - Multiplexed call signaling Annex F - Simple Endpoint Terminal (SET) Annex G - Text SET Annex H - Mobility Annex I - Operation over low QoS Networks Annex J - Secure SET Annex K - HTTP Service Control Transport Annex L - Stimulus Signaling Annex M - QSig Tunneling Annex N - QoS Audio codecs G.711 - PCM audio codec 56/64 kbps G.722 - audio codec for 7 Khz at 48/56/64 kbps G.723 - speech codec for 5.3 and 6.4 kbps G.728 - speech codec for 16 kbps G.729 - speech codec for 8/13 kbps Video codecs H.261 - video codec for >= 64kbps H.263 - video codec for < 64kbps Related standards H.320 - The original ISDN videoconferencing standard. H.324 - An extension of H.320 for videoconferencing over PSTN lines T.120 - Real time data conferencing protocol

  18. Voice quality of Audio codecs? MOS (Mean Opinion Score) 5 Excellent G.711 PCM G.728 LD-CELP G.726 G.727 ADPCM 4 G.729 G.723 CS-ACELP Good MP-MLQ ACELP 3 Fair 2 Poor 1 Bad 2 4 8 16 32 64 kbps TDA200/100 supported

  19. PBX PT/SLT IP-GW Router Router IP Network IP Network IP Network 5.What is the connection type of VoIP ? (1)Configuration of 1st stage (Current Models) (2)Configuration of 2nd stage( TDA200/100 V1) PBX FXS/FXO/E&M/PRI/BRI/T1/E1 IP Trunk PT/SLT Router (3)Configuration of 3rd stage (TDA200/100 V2) PBX IP Telephone PT/SLT

  20. 6.What is “KX-TDA0480(VoIP Gateway Card) ? - KX-TDA0480(VoIP Gateway Card) to be built into a slot of KX-TDA200/100 - KX-TDA200/100 vendor can provide their customers with the total solution of the telephone and data networks using KX-TDA0480.

  21. T3 36 IP Network IP Network 6.1 What are the benefits of KX-TDA0480 ? BRI-CO (QSIG-Slave) BRI-EXT (QSIG-Master) BRICard OKI-BV1250-BRI KX-TD500 KX-TDA0480 (VoIP Card) QSIG-Master BRICard QSIG-Slave KX-TDA100/200 No programming needed for the I/F between VoIP card and PBX QSIG Service

  22. KX-TDA200 KX-TDA200 6.2 How is the connection of KX-TDA0480 ? KX-TDA0480 (IP-GW Card) KX-TDA0480 (IP-GW Card) KTS/PBX IP Network Router Router LAN LAN Branch Office Head Office TDA480 is able to store number translation information for up to 511.(without GK) KX-TDA0480(VoIP Card) does not operate in the communication of the network where NAT(Network Address Translation) was used.

  23. 6.3 How is the construction of TDA0480?(1/2) DSP CPU 10 Base T Ethernet Port SD RAM RS232C Maintenance Port FPGA Upper Card( VoIP/H.323 control ) Lower Card(Communicate MPR and Upper card)

  24. 6.3 How is the construction of TDA0480?(2/2) ROM(MAC Address) Power CPU ASIC SRAM LAN Controller SRAM Dual Port RAM Flash Memory FPGA CPU ASIC

  25. 6.4 What are KX-TDA0480 Functions? (1)ITU-T H.323 version 2 Compliant (2)Voice Codec: G.729a / G.723.1 Voice Channel: 4 (3)Internal DNS facility (4)Adaptive jitter buffer technology (5)Automatic integrated echo cancellation (6)Fax (G3 Standard) Fax Channel: 4 (7)DTMF Transmission (8)Easy Maintenance(RS232C and LAN)

  26. IP-GW IP-GW IP-GW Router IP Network (3)Internal DNS facility - You don't need the installation of the special external H.323 gate keeper or DNS server by using the data file of translation of the number in IP Trunk. - KX-TDA0480 has an internal DNS facility that can be used to perform this task. A:10.75.49.212 B:10.75.42.242 C:10.75.40.252 A:10.75.49.212 B:10.75.42.242 C:10.75.40.252 PBX-A PBX-B PT/SLT Router A:10.75.49.212 B:10.75.42.242 C:10.75.40.252 PBX-C Router Management PC

  27. (4)Adaptive jitter buffer technology - Voice is reproduced, after the packet is accumulated in the buffer once. - KX-TDA0480 supports a secondary Jitter Buffer that activates in a dynamic manner.(Regularly and Less delay) - This feature can be configured to help compensate for network congestion problems. Voice Packet From IP Network To PBX IP Gateway Regularly Irregularly Buffer Maximum Receive Buffer Size, defines the size of Jitter Buffer (max 1920ms)

  28. (5)Automatic integrated echo cancellation (1)No echo cancellation <Example> PBX PBX 100 ms Caller 10 ms 10 ms PT/SLT PT/SLT Router Router 10 ms 100 ms 10 ms (2)Echo cancellation Echo Cancellation <Example> PBX PBX 100 ms Caller 10 ms 10 ms PT/SLT PT/SLT Router Router From 150ms to 200ms is the limit of the delay.

  29. (6)Fax (G3 Standard) - G3 fax conforms to ITU-T Rec. T.38 standards - Up to four fax lines per unit - Communication configuration is 9600, 4800bps with no fall back PT/SLT PBX NO Voice compression FAX? YES FAX Codec IP(T.38) Transmission Operational limits - Manual transmission and voice reservation functions of the G3 fax terminal cannot be used. - Under high network load and poor transmission conditions, a fax communication may be dropped. - During a fax connection, KX-TDA0480 send a Ring Back Tone (RBT) until a fax connection is achieved.

  30. (7)DTMF Transmission - Sending units detect and convert DTMF tones for reliable TCP transmission. - Receiving units regenerate DTMF tones. PT/SLT PBX Codec PB Signal NO CS-ACELP PB? YES PB Codec Assures accurate and reliable transmission when interfacing with Auto Attendant/Voice Mail or Interactive Voice Response systems.

  31. (8) Easy Maintenance(RS232C and LAN) Remote maintenanceis available through the network by the maintenance console set up in the network. Maintenance Console Telephone Network Telephone Network IP Network PBX PBX (1)Update of the file (2)Check the state of IP Trunk operation (3)Change in the office data (4)Collect the Report/Log(Traffic, Log of trouble, and History of the telephone call, etc.) (5)Reboot and shutdown, etc. (6)Setting the time

  32. (8) Easy Maintenance(RS232C and LAN) The command restriction can prevent the command being executed from two or more maintenance persons at the same time when remotely maintaining. PBX LAN RS232C More than one log-in to the equipment is possible. - Only 1 user of the serial - Up to 3 users of telnet

  33. (8) Easy Maintenance(RS232C and LAN) You can memorize the information of fault and fault recovery which is generated in VP Trunk, display with the lamp in front of the VP Trunk. [Command entry example] # ELOG There are 003 messages 10 (Remove) 20 (Voice) 00 (DSP-Fault) SEQ=01 TUE Jul 08 12:29:30 1997 4EF94000 15784E71 009029D0 009029D0 N.@..xNq..)...). 00 (Fault) 20(Voice) 00 (DSP-Fault) SEQ=01 TUE Jul 08 12:29:30 1997 0008F75C 4FEF000C 300748C0 7204B081 …/0...0.H.r... 01 (Report) 00(System) 00 (Power-ON) SEQ=00 TUE Jul 08 12:28:52 1997 47EEFF8C 42420C33 00202000 6D080C33 G...BB.3. .m..3 ...ELOG Command End. [Thu Jul 08 12:30:30 1997] # (1) The number of information which can be memorized are 700 or less. It is cleared from old information one by one, when 700 is exceeded. (2) Fault information is memorized when the fault occurs, and VP Trunk informs(TRAP transmission) to the specified NMS. (3) The alarm lamp of VP Trunk is lit according to the content of the fault. (4) Recorded fault log information can be output to the display by the operation from the maintenance console. (5) Fault information can be collected by the following method. - Function of collection of fault logs of maintenance console software - Communication software of PC (Telnet etc.) - Direct collection from RS232C port

  34. LED information for Status and Alarm

  35. (8) Easy Maintenance(RS232C and LAN) The Fault occurrence can be notified by e-mail. Fault message: (1) Power ON (2) Reboot by command (3) Reboot due to fault Factory HQ Host Router PBX PBX SW-HUB SW-HUB Router Mail Server Sales Offices Internet

  36. 7.What are Router Functions for the QOS? (1)RSVP(Resource reServation Protocol) (2)Collision prevention of voice and data (Separating the port of LAN) (3)Priority control for the Voice packet (4)Securing the bandwidth (5)Packet fragmentation (6)RTP header compression

  37. IP-GW IP-GW (1)RSVP(Resource reSerVation Protocol) (1)RSVP is operated on IP router. (2)This is to secure the bandwidth of the voice before the communication, and to guarantee the bandwidth of end to end. (3)The real-time data streaming cannot be guaranteed, though RSVP can guarantee Bandwidth. (4)It is necessary to have RSVP function by all Router which passes to use RSVP. PBX PBX Path Message PT/SLT PT/SLT Router Router Reserve Message

  38. Router Router IP Network IP Network (2) Collision prevention of voice and data (1)Same port of LAN IP Trunk PT/SLT (2)Separating the port of LAN IP Trunk PT/SLT

  39. IP Network (3)Priority control of voice (1)Queuing IP Trunk Router PT/SLT The voice is previously prior put out.

  40. IP-GW IP-GW (4)Securing the bandwidth (1) Current construction PBX PBX PT/SLT Analog leased line (4 lines) PT/SLT Digital leased line (64kbps) Router Router (2) Band width of leased line PBX PBX PT/SLT Digital leased line (128kbps) PT/SLT Router Router Bandwidth by one channel : 14kbps, Channel of voice path : 4 channels, Bandwidth of control signaling :8kbpsTotal Bandwidth : 14 X 4 + 8 = 64Kbps

  41. IP Network IP Network (5)Packet fragmentation (1)The packet is not divided IP Trunk Router PT/SLT A delay of the voice is created. (2)The packet is divided IP Trunk Router PT/SLT The delay of the voice decreases.

  42. (6)RTP header compression In the case of G729A(8kbps), Packet Interval : 40ms Packet Interval : 40ms IP Packet/80B RTP/12B UDP/8B IP/20B Voice/40B Voice/40B Header/5B IP Packet/45B

  43. Recommended Router - Cisco 1000 series ISO10.0 or more - Cisco 1600 series ISO10.0 or more - Cisco 2500 series ISO10.0 or more - Cisco 3000 series ISO10.0 or more - Cisco 4000 series ISO10.0 or more

  44. Chapter 12.1 VoIP Gateway Card Thank you very much ! Thank you very much !

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