Download - Ppt voip-vsat-3-2002
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Fokus Pembicaraan .. VSAT IP VoIP Share Akses (kalau ada waktu) …
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VSAT
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Spesifikasi .. Antenna Kecil < 1 meter s/d 3
meteran Frekuensi Umumnya C-Band (4-
6GHz) Kalau berani mencoba Ku-Band
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Aplikasi Receive Only Transmit / Receive
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Receive Only Stock market & other news broadcasting Training or continuing education from a
distance Distribute financial trends & analyses Introduce new products at geographically
dispersed locations Update market related data, news Distribute video or TV programs Distribute music in stores & public areas Relay advertising to electronic signs in retail
stores
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Konvensional DVB
WARNET InterNetmelesat.net
Satellite dish
Satellite
Satellite dish
1.5Mbps
33.6Kbps
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PC DVB Card
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Transmit / Receive Interactive computer transactions Internet Video Teleconferencing Database inquiries Bank transactions, ATM Reservation systems Distributed remote process control Voice communications Electronic fund transfer at Point-of-Sale E-mail
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Konfigurasi VSAT Point To Point (SCPC) Point To Multipoint (TDM-TDMA) On Demand (DAMA)
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Single Channel Per Carrier
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SCPC Bandwidth
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TDM-TDMA
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TDM-TDMA Bandwidth
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Demand Assigned Multiple Access (DAMA) Network Control System (NCS)
Switch Board di Angkasa. Jika ada node yang membutuhkan
hubungan frekuensi baru di alokasikan.
Membebaskan frekuensi jika tidak digunakan.
Mendukung operasi full mesh, point-to-point, point-to-multipoint.
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Inti VSAT IP Tambahkan Router dibelakang
modem VSAT
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VoIP
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Model Usaha VoIP
ITSP
ITSP
MinuteExchange
Internet
Managed IP
WARTEL / WARNET
Personal User
Corporate Users
Telepon
Indonesia Luar Negeri
Corporate Users
net Cafe
Personal User
Telepon
FAX FAX
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Dalam Bahasa Sederhana ..
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Telp Biasa vs. VoIP Hanya satu
penumpang
Banyak Penumpang
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Teknologi VoIP sederhana
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Internet Telephone
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Dialer
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Video Conference
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Voice Quality Comparison
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VoIP Blaster – US$50-an
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Internet LineJACK US$99
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Infoaccel US$99.95
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PCMCIA ShelCad
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Solusi Gateway Sederhana
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VoiceTronix (8 port)
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InfoGate 3010 (4 Port)
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iEnsemble! – 8 port
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Planet VoIP Gateway
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Aplikasi Desktop VoIP IntraNet Communication Remote Call Forwarding Distributed Call Center Virtual PBX Line Doubling Personal Iphone Calling
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Personal Iphone Calling
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Distributed Call Center
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Line Doubling
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Isu Quality of Service (QoS) Kekurangan Bandwidth Delay terlalu lama. Jitter / Variasi delay.
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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.
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Metoda KompresiKompresi Kbps MIPS ms MOSG.711PCM 64 0.34 0.12
54.1
G.726 ADPCM 32 14 0.125
3.85
G.728 LD-CELP 16 33 0.625
3.61
G.729 CS-ACELP 8 20 10 3.92G.729 x2 Encoding 8 20 10 3.27G.729 x3 Encoding 8 20 10 2.68G.729a CS-ACELP 8 10.5 10 3.7G.723.1 MPMLQ 6.3 16 30 3.9G.723.1 ACELP 5.3 16 30 3.65
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WAN QoS-Enabling Tech.
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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
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Prioritizing Voice Traffic
Priority Queuing (PQ) Data Traffic
weighted fair queuing (WFQ) class-based weighted fair queuing
(CBWFQ)
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Prioritizing
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Sharing Akses …
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LANGateway
InterNet
Konsep WARNET Konvensional
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Mengembangkan Konsep WARNET .. RT/RW-Net Kelurahan Net Mall Net Perkantoran Net Apartemen Net
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Sharing Bandwidth Akses Satelit
Downlink rata-rata 1.1-1.5Mbps US$3000-6000 / bulan Rp. 24-48 juta / bulan
Sharing Bandwidth WARNET Rata-2 Rp. 2-3 juta / bulan
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Two Way Satellite
Satellite dish Satellite dish
Satellite
Radio tower
InterNet
WARNET
WARNET
WARNET
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Share Access Wireless 11Mbps Lokasi rumah Onno W. Purbo
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Spesifikasi PC Gateway Pentium 166MHz Memory 64Mbyte Harddisk 2Gbyte VGA Card S3 2Mbyte Running Linux Mandrake 8.0
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Spesifikasi Link 24 jam operasional 11Mbps ke Askes Point 256Kbps ke Internet Rp. 330.000 / bulan (500MByte) Tanpa Telkom Sama Sekali
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Konfigurasi LAN UTP 10Mbps shared bus Hub bekas (Rp. 75.000 / buah) Tarik kabel UTP ke tetangga Tembok di bor
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Wireless 11Mbps PCI Card
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2.4Ghz Ant.