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VoIP. Onno W. Purbo [email protected] Arah Perkembangan. Philosophy. The old world Box reliability Centralized The new world Network availability Distributed. References. http://www.cisco.com http://www.lucent.com http://www.xl.com http://www.quicknet.net http://openh323.org

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Voip

VoIP

Onno W. Purbo

[email protected]


Arah perkembangan

Arah Perkembangan


Philosophy

Philosophy

  • The old world

    • Box reliability

    • Centralized

  • The new world

    • Network availability

    • Distributed


References

References

  • http://www.cisco.com

  • http://www.lucent.com

  • http://www.xl.com

  • http://www.quicknet.net

  • http://openh323.org

  • http://openphone.org

  • http://www.pulver.com


Outline

Outline

  • End User Perspective

  • Conceptual Framework

  • Next Generation Telco ..


End user internet telephone

End User - Internet Telephone


Komponen voip menit

Komponen VoIP / Menit

  • TelkomRp. 75 / menit

  • ISPRp. 75 / menit

  • Hook-off Service

    • http://www.net2phone.com

  • Delay <250ms


Biaya sli menit 1us rp8000

Biaya SLI / Menit (1US$=Rp8000)


Solusi kantor kecil rumah

Solusi Kantor Kecil / Rumah

  • Satu (1) Saluran VoIP

  • Internet PhoneJACKUS$150

  • Internet LineJACKUS$220

  • Internet PhoneCARDUS$170


Komunitas warnet

Komunitas WARNET

  • [email protected]

  • Free subscribe:

    • [email protected]

  • Komunitas e-commerce

    • [email protected]

    • [email protected]

    • [email protected]


Kebutuhan warnet

Kebutuhan WARNET

  • Line telepon koin

  • Leased line analog

    Regional Network / DIVNET

  • Akses ke box JAMUS V.35 / RS.449


Warnet tanpa telkom

WARNET “tanpa” Telkom

WARNET ke Internet

  • Satellite DirectPC – US$200 / card

  • KabelVision – Rp. 300.000 / bulan

    Jaringan WARNET

  • 2-11 Mbps 2.4 GHz US$250 / card


Teknologi voip sederhana

Teknologi VoIP sederhana


Internet telephone

Internet Telephone


Dialer

Dialer


Video conference

Video Conference


Internet phonejack

Internet PhoneJACK


Connection phonejack

Connection PhoneJACK


Internet phonecard

Internet PhoneCARD


Voice quality comparison

Voice Quality Comparison


Solusi gateway sederhana

Solusi Gateway Sederhana


Voicetronix 8 port

VoiceTronix (8 port)


Voip untuk warnet

VoIP untuk WARNET

  • Investasi WARNET+

  • Invest Card DSP ~US$150 / kanal.

  • Estimasi ke US biaya / menit

    • US$0.13 + Rp. 75 + Rp. 75

  • Estimasi ke US biaya SLI 001

    • Rp. 9900-8300 / menit


Issue desktop voip solution

Issue Desktop VoIP Solution

  • Ease of Installation.

  • Infrastructure.

  • Flexibility.

  • Compatibility.

  • Ease-of-Use.

  • Quality.

  • Cost

  • Growth Path.

  • Base for Applications.


Aplikasi desktop voip

Aplikasi Desktop VoIP

  • IntraNet Communication

  • Remote Call Forwarding

  • Distributed Call Center

  • Virtual PBX

  • Line Doubling

  • Personal Iphone Calling


Personal iphone calling

Personal Iphone Calling


Intranet communications

Intranet Communications


Remote call forwarding

Remote Call Forwarding


Distributed call center

Distributed Call Center


Virtual pbx

Virtual PBX


Line doubling

Line Doubling


Mobile user

Mobile User


Mobile user1

Mobile User

  • Internet Locator Service (ILS)

  • Mapping Name Number  Dynamic IP


Internet locator service ils

Internet Locator Service (ILS)

  • http://www.icq.com

    • ILS & chat system

  • http://www.tzo.com

    • Dial your DNS name.


Conceptual framework

Conceptual Framework

  • H.323


H 323 benefit

H.323 Benefit

  • Codec Standards.

  • Interoperability.

  • Network Independence.

  • Platform & Application Independence.

  • Multipoint Support.

  • Bandwidth Management.

  • Multicast Support.

  • Flexibility.

  • Inter-Network Conferencing.


H 323 mengatur

H.323 mengatur ..

  • Video Codec (H.261 dll).

  • Audio Codec (G.711, G.723 dll).

  • Data channel (T.120 dll) e-board dll.

  • System Ctrl Unit (H.245, H.225.0 dll).

  • H.225.0 layer – error detection, error correction and frame sequencing.


Open standard

Open Standard


Komponen h 323

Komponen H.323

  • Terminal

  • Gateway

  • Gatekeeper

  • Multipoint Control Unit (MCU)


Terminal h 323

Terminal H.323

  • Provide Real-Time.

  • Provide Two-way communications.

  • H.245 – nego channel usage & capabilities.

  • Q.931 – Registration/Admission/Status (RAS).

  • T.120 – Data Conferencing Protocols.


Komponen h 3231

Komponen H.323

  • H.323 Gateway

    • Interface H.323 terminal – WAN terminal.

  • H.323 Gatekeeper

    • Address Translation (E.164 – IP)

    • Admission Control. Authentication.

    • Bandwidth Control.

    • Zone Management.

    • Call Control & Management

      • (e.g. VoIP – PSTN)


H 323 gateway

H.323 Gateway

  • Optional!

  • Translation function between H.323 conferencing endpoints and other terminal types.

  • Translation between transmission formats (i.e. H.225.0 to H.221).

  • Translation between communications procedures (i.e. H.245 to H.242).

  • Translation between audio and video codecs.

  • Performs call setup and clearing on both the LAN side and the PSTN side.


H 323 pstn gateway

H.323/PSTN Gateway


Gatekeeper

Gatekeeper

  • The most important component asct as a virtual switch of an H.323 enabled network.

  • It acts as the central point for all calls within its zone and provides call control services to registered endpoints.


Gatekeeper1

Gatekeeper

  • Address translation from LAN aliases for terminals and gateways to IP or IPX addresses (e.g E.164 – IP)

  • Bandwidth management.

  • Route H.323 calls.

  • Bill for calls.


Gatekeeper zone

Gatekeeper Zone


Isu quality of service qos

Isu Quality of Service (QoS)

  • Kekurangan Bandwidth

  • Delay terlalu lama.

  • Jitter / Variasi delay.


Voip

QoS

  • Resource Reservation Protocol (RSVP)

  • Real Time Protocol (RTP)

  • Compressed Real Time Protocol (CRTP)

    • Traffic Shaping

    • Queuing: Custom Queuing, Weighted Fair Queuing.

    • Congestion Control: Random Early Detection.

    • Effisiensi Jaringan: link fragmentation & interleaving.


Metoda kompresi

Metoda Kompresi


Mos vs dsp price

MOS vs. DSP Price


Intermediate solution voip

Intermediate Solution VoIP


Interkoneksi suara data suara

Interkoneksi Suara-Data-Suara


Interkoneksi pc telepon

Interkoneksi PC-Telepon


Gatekeeper2

Gatekeeper

  • Lucent PacketStar IP Gatekeeper

    • 23.500 DSO

    • 2.300.000 calls / day (one zone)

    • 7.800.000 calls / day (multi zone)

  • Cisco CallManager

    • Windows NT

  • Quicknet

    • H.323 Internet SwitchBoard


Gateway

Gateway

  • Lucent PathStar

    • 80.000 POTS

    • 10.000 xDSL

  • Cisco DE-30+

    • 30 voice on E1

  • Cisco AT-2, 4, 8

    • Analog loop RJ-11, 2, 4, 8 POTS.


Next generation telco

Next Generation Telco


Split data voice network

Split Data & Voice Network


Converged enterprise network

Converged Enterprise Network


Philosophy1

Philosophy

  • The old world

    • Box reliability

  • The new world

    • Network availability


Network availability

Network Availability


Network availability1

Network Availability

  • Redudancy at many levels.

  • Advanced Layer 3 Protocols:

    • Hot Standby Routing Protocol (HSRP).

    • Open Shortest Path First (OSPF).

    • Enhanced Interior Gateway Routing Protocol (EIGRP).

  • Multicast Routing:

    • Protocol Independent Multicast (PIM).

    • Distance Vector Multicast Routing Protocol (DVMRP).


Campus network

Campus Network


How detailed

How? – Detailed ..


End to end architecture

End-to-End Architecture


Open architecture

Open Architecture

  • H.323

  • Simple Gateway Control Protocol (SGCP)

  • Media Gateway Control Protocol (MGCP)

  • Session Initiation Protocol (SIP)

  • Telephony Application Programmable Interface (TAPI)

  • Java Telephony Application Programmable Interface (JTAPI)


Low cost of ownership

Low Cost of Ownership


Hierarchical wan design

Hierarchical WAN Design

  • the network must support and supply the prerequisite QoS features.

  • Hierarchical model to allow the most cost-effective platforms.

  • As the requirements for data traffic outstrip those of voice, voice bandwidth decreases & lowering costs.

  • WAN links to support the minimum requirements for data + voice and video. When other applications are quiescent, the bandwidth is available for data.


Wan qos enabling tech

WAN QoS-Enabling Tech.


Classification

Classification

  • Layer 3 (IP)

    • IP Precedence; VoIP  5.

    • Differentiated Services Code Point (DSCP)

  • Layer 2 (MAC) schemes

    • Voice  RTP

    • Voice  UDP

    • Voice  Port 16383 - 32767


Prioritizing

Prioritizing

  • Voice Traffic

    • Priority Queuing (PQ)

  • Data Traffic

    • weighted fair queuing (WFQ)

    • class-based weighted fair queuing (CBWFQ)


Prioritizing1

Prioritizing


Link efficiency techniques

Link-Efficiency Techniques

  • Voice Compression (e.g. G.723).

  • Compressed RTP

    • 40 byte IP+UDP+RTP  2-4 bytes.

  • Voice Activity Detection (VAD).

  • Link Fragmentation & Interleaving.

    • Frame Relay – FRF.12

    • Serial Link – Multilink PPP (MLP).


Traffic shaping

Traffic Shaping

  • Multiple access nonbroadcast media such as ATM and Frame Relay where the physical access speed varies between two end points.


Issue qos campus network

Issue QoS - Campus Network

  • Aggregation points where many links aggregate into an uplink.

  • aggregation points where speed mismatches occur.


Qos campus network

QoS Campus Network

  • The primary concern is buffer management and the ability to provide the required queuing schemes to ensure voice gets the appropriate bounds for loss, delay, and jitter.


Qos strategies

QoS – Strategies

  • Classification is a key attribute.

  • Queuing techniques.

  • Buffer management is also used to ensure that excess jitter is not added for voice traffic.

  • To combat this, the multilayer LAN switches provide either two queues or a single queue with definable drop thresholds to bound delay.


Application

Application

  • IP Telephony

  • Unified Messaging

  • IP Contact Center


Voip

VoIP


Unified messaging

Unified Messaging


Ip contact center

IP Contact Center


Migration strategies

Migration Strategies


Terima kasih

Terima Kasih


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