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New Age of IP Telephony

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					New Age of IP Telephony



                Ukrit Wongsarawit
                Network Technology Manager
                ukrit.w@g-able.com
  Agenda
• Conventional telephone and data networking
• Voice data convergence
• IP telephony
   – PBX based IP telephony
• Implementing convergence networks
Data Network
            NMS
                        Internet


      LAN




                  WAN




      LAN
Telephone Network
                    NMS
                                Internet


      LAN
     Copper                      PSTN
              PBX


                          WAN
       NMS



      LAN
     Copper
              PBX
 Conventional Network
 Infrastructure
• Separate Telephone and Data Network
• Separate Set of Infrastructure : High Total
  Cost of Ownership
• Extremely Complex Network : Difficult to
  Upgrade and Expand Network
• Need Multiple Team of Administrators :
  Difficult to Administrate and Operate Network
  Agenda
• Conventional voice and data networking
• Voice data convergence
• IP telephony
   – PBX based IP telephony
• Implementing convergence networks
What is Voice Data Convergence


                    ?
              VOICE and DATA on the
              Same Media : LAN, WAN
Voice over Data Network Technology
• WAN Solution : VoATM, VoFR, VoIP
• LAN Solution : VoATM, VoIP
• Valued Added Application : VoIP

Voice Over IP Technology is Total Solution in
           Voice Data Convergence
    IP Technology Drivers
• Internet Explosion
• Everything Over IP Wave : IP as the main
  protocol for Data, Voice, Desktop Video will run on
  IP. IP is on the way to do what ATM and ISDN failed
  to do : Integrate all the services.
• Same Technology for Internet and Intranet
• Cost Savings : People try to lower the Telecom
  Costs
• H.323, SIP is Main Standard
           Convergence Communication
            Data
        Voice                            Single Infrastructure



      Video                                 Packet-Based
       Internet                              IP Network



• Integration of data, voice, and video services into a single packet-
  based IP infrastructure
• Both in enterprise and public service provider network
  infrastructure
“Converging voice and data onto a single network is the major strategy
on which enterprises must embark if they are to resolve the conflict
between network budgets and desired network capabilities”.
                                               capabilities
Benefits of Voice Data Convergence
• Reduction in Network Infrastructure Cost
   – Converging Multiple Network Infrastructure to a
     Single IP-based Network.
   – Lower System Expansion Cost
   – Eliminating Long Distance Call Charge
• Reduction in Staffing and Administration Cost
• Easy to Integrated with New Application : Call
  Center, UC, IVR, Enterprise Applications
    Agenda
•   Conventional voice and data networking
•   Voice data convergence
•   IP telephony
•   Implementing convergence networks
Data, Voice, Video Convergence
directions

                         Infrastructure/
                           Information
                          Convergence
            Business/
           Application
             Enable

 Budget
Leverage


 1998         2003            2006
Voice/Data Convergence phase I
                     NMS



       LAN
                     Gateway              PSTN
      Copper   PBX

                           WAN            Internet

        NMS                •Lease Line
                           •Frame Relay
                           •ATM
       LAN                 •IP
     Copper          Gateway

               PBX
Voice Gateway



   Analog Voice                 Packet Voice
                  Compression
     VoIP Gateways
• Analog FXO or FXS
  VoIP gateway
• G.711/G.723.1 audio
  compression
• Two, four, or
  eight-port configuration
• Standard 10 BaseT network
  interface
  Voice/Data Convergence phase I
• Focus on cost reduction
• Use voice gateway to convert voice to data
  packet for reduce long distance cost
• Voice feature not transparency
• Separate management system
  – Data network
  – Voice network
Voice/Data Convergence phase II


                         Infrastructure/
                           Information
                          Convergence
            Business/
           Application
             Enable

 Budget
Leverage


  1998        2003            2006
       Voice/Data Convergence phase II
           Directory Service

User                           NMS
                                      IP
                                     PBX
                                                     PSTN
                 LAN




                                     WAN             Internet
                Fax
                                      •Lease Line
                                      •Frame Relay
                                      •ATM
                 LAN                  •IP


                                IP
                               PBX
                  Native IP Telephony Components
                             • IP Telephony Devices
                                     -
                                – End user desktop devices in IP Telephony Networks.
                        IP
                                – IP Phones, Soft Phones (Net Meeting)
   Soft Phone




        PSTN                 • Gateways
                                – Provide translation between Voice Network and IP Network
                                – PBX, Router, LAN Switch, Stand Alone Gateways

                             • Call Processing
  H323          PBX Based
                                – Perform address translation between telephony and IP address.
Gatekeeper      Gatekeeper
                                – Call Signal processing, Call establishment.
                                – Gatekeeper/ Call Server
   IP PBX



PSTN                  Switched
                    Ethernet LAN

            VoIP Module
       IP Telephones
• Standard TCP/IP
• DHCP addressed
  (simplifies moves/add/
  changes)
• 10/100BaseT
• Evolving from “key-lamp-
  pair” to display technology
Softphones
    Softphone
    •Boss/Assistant
    •Groupware
    •VoIP


  Multi Terminals
                             SMS
   •WAP, PDA           PDA   SMS
   •SMS, MMS



  Voice Access
   •Per 2 VxML ports    Voice
   •Text To Speech
        Web Softphone
• Web user interface
    – Phonebar mode (dynamic)
                                 -
        • Automatic toolbar pop up on incoming call with Caller ID
        • Automatically in background on call release
    – Full mode, or Web dashboard
    – Customization is done by user
                                                          -
        • Shortcut, layout, dynamic Phonebar, Directory Pop up, Language, keypad
             type, softkeys
    – Browser: IE 5.5, Netscape 4.73 or upwards
    – Multi- language
• Any type of associated Phone Set
    – Digital, analog, DECT/PWT, Cellular
    – Multimedia PC and VoIP
• User defines his current location
    – Office, Out of Office (Mobile phone or any phone number)
     IP Telephony Network
                                                       PBX
                                                               10.1.1.4



                                    PBX
                                                         Gatekeeper
                                                         Gateway
                                                                          Telephone
                                                                           Network
                         Gatekeeper
                         Gateway
                                                      IP Network
                1111

                                                                                Voice Only
10.1.1.2


               IP




                             1112



                                           10.1.1.3
                                                          IP
              Phones/
           User Interfaces
                              Soft Phone
    Voice/Data Convergence phase II
• Business/Application Enable Phase : IP Telephony, IP VDO
  Conference, Unified Communication
• Hybrid Network
• Can integrated IP Phone, IP VDO Conference and
  conventional Telephone with IP PBX
• Benefits from IP Telephony and maintain conventional
  users
• Transparent voice feature
• Integrate with Communication applications : Call Center,
  UM, IVR
• Integrated with enterprise applications
• Single management system
                Unified Communication
      • A suite of Unified Communication applications
            – anywhere, on any device
   Voice & Business
    Data applications
  Networks

                                         IP, PSTN,
          Web Sites                     GSM, GPRS,
Collaboration                           UMTS, WLAN,
                                         Bluetooth,
                                           etc…

        Directories
   E-mail

                                                      Speech Access




    Corporate                            Anywhere         Any Device
    Resources
           Unified Messaging



“To check your voice mail: press 1”
“To check your Fax: press 2”
“To check your e-mails: press 3”
…./….



            VxML
            VxML
          Instant Messaging - Presence
• Stay on line with your team
   – Buddy list with presence
      • Multi level of presence management
         – Terminal presence
              » PC, business phone, DECT, Mobile,
                PDA…
          – Network presence
              » Mobile, DECT
   – Multi Terminal Instant Messaging
      • PC
           – Web interface, Windows Messenger,
             Jabber
      • Mobile phones
           – WAP WML, Wireless Village
      • PDA (Web)                                   Directory
                                                    Directory     Event
                                                                Notification
      High-performance Contact Center -
      Improve Customer satisfaction
• Comprehensive multimedia Contact Center solutions
  – 1st call Resolution
  – Integration with CRM : Psft, Orcl, Sebl, Msft, SAP
  – Any media
      • Voice, Web, Internet, e-mail
  – Multi-site
      • Virtual CC
      • Central reporting consolidation
  – Personalized customer services
IP VDO Conference
      IP data rates up to 512Kbps
      H.320 and H.323 Supports
      10/100 Base TX Interfaces
      Interactive Multicast participant
                                               IP Convergence Solution
                                 Application Servers                                                                                               IP PABX
                                                                                                                                                                        PC Clients

                     UM Application        Call Center         Mail Server

                                                                                  Analog Phone                                                          Branch office



                    (Fax, Application , Media Server , CTI)                                                                                            Router
                                                                                                                                                                   IP Phone
      PC Client                                                    PABX Gateway / Gatekeeper                                                        1 BRI (ISDN)
                                                                          IP PABX
                                                                                                     1 E1/ PRI (ABC link)

                                       IP Networks                                                                             ISDN PRI / BRI
MGMT / MCU Server (H.323)                                                                        1 E1/ PRI (Voice)             Public Network
                                                                                                                                                                           Fax
                                                                              1 E1/ PRI (RAS)



                                                                                                                 ISDN VDO
                                                                         RAS Gateway                            Conference
                                                                                                                             Analog Phone               PC Access Client
                                                              Wireless IP Phone
    WLAN Client
                                                                       1 E1/ PRI (Video)
                     IP Phone
                                      Gateway H.320 to H.323
                                                                                                                                                Access Layer


       Network Infrastructure
Voice/Data Convergence phase III


                         Infrastructure/
                           Information
                          Convergence
            Business/
           Application
             Enable

 Budget
Leverage


 1998         2003            2006
       Voice/Data Convergence phase III
           Directory Service/
           CA
User                              NMS

                                                          Public
                                                     Packet Telephone
                                          Call
                                         Server          Operator
                  LAN



                                                Internet,
                  Fax                         IP Network
                                           (Broadband, WIFI)


                  LAN


                                 Call
                                Server

                  Fax
  Voice/Data Convergence phase III
• Single IP network
• Single voice/data service provider
• IP Telephony services both in enterprise and
  service provider
• IP Telephony and Triple Play Services to
  home/residential
• Skype Services : Internal Call – Free of Charge,
  Outgoing Call (USA) – Less than 1 Baht/minute
  Agenda
• Conventional voice and data networking
• Voice data convergence
• IP telephony
   – PBX based IP telephony
• Implementing convergence networks
  Implementing convergence
  network
• Has enough bandwidth to carry VoIP traffic
• Has implemented a QoS strategy
• Power In-Line Enable
     Why QoS? Can’t we just increase
     Bandwidth ?
• Increased bandwidth reduces queuing delay,
  however…
• Some applications such as VoIP:
  – Require consistent Delay Performance
  – Behave poorly under bursty network conditions
• QoS provides the ability to read, alter, prioritize and tag
  or mark IP traffic based upon information in the IP
  header
• The ability to prioritize traffic allows for:
  – Better voice quality when using IP telephony
  – Better quality streaming videos and video conferencing
  – The ability to offer levels of service based upon bandwidth
    allocation
           QoS Implementation
                                          High
     Edge Switch                          Medium
     Classification                       Low
     Rate Limit
                                      Core Switch :
                                      -Queuing :
    Voice Traffic                           High 60%
   : High Priority                          Medium 30%
                                            Low 10%

Internet Traffic
 : Low Priority
                         Core
                      Access Switch
                                          ERP Traffic
                                        :Medium Priority
      Wire-rate Intelligence & One Touch
      Manageability
• Voice, Video, Data Services differentiation at Wire speed …
  or every thing will be slow down
     – L2/L3/L4 Wire rate classification what ever the action …
       QOS, rate limiting, mapping ...Filtering, NAT...Load Balancing
• One Touch Manageability … to easily deploy complex
  functions and save on network operator costs
     – Automatic settings of QOS for IP Phones and servers
       across the entire network with a few clicks
     – Unified platform to support
       data and voice management
         QoS Policy Management
• What
     – Allows admin to easily configure QoS settings
     – Automatically replicates to all other switches with a click
     – Two modes - easy and expert
•   Benefits
     –   Reduces man hours configuring network
     –   Ensures voice throughput
     –   Configurations easily updated
                                                                    QoS


                          QoS
                                       QoS
                                                    QoS                     QoS


                                                                    Network Manager
                                                QoS Configuration
           Power In Line Enable
•   What
    –   IP equipment powered directly from network port
    –   802.3af standards based
    –   Chassis IP power capable from day one
•   Benefits
    –   Reduces electrical cabling
         • Allows equipment placement where no electrical outlets exist
    –   Embedded power management
    –   Auto-sensing of termination equipment
                   IP PBX
                                   In-Line Power        IP Phones
                                   Comm Line



                   Network
Question & Answer

				
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posted:11/10/2011
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