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Following is a review of the network elements for VoIP service

Following is a review of the network elements for VoIP service

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    voip elements by Karan singh cypher voip elements by Karan singh cypher Presentation Transcript

    • VoIP
    • Key terms about VoIP  H.323  SIP  CODECs  G.711  G.729  G.723  FXS and FXO  Gateway  T.38 FAX These are what everyone talks about
    • What is VoIP…the technology Analog or Digital voice circuit VoIP Gateway IP Packets with Voice Samples VoIP Gateway Analog or Digital voice circuit IP Network Internet • Voice over IP (VoIP) samples 10 – 60ms of voice with an Analog-to-Digital conversion process (CODEC). This is similar to the way the phone company does it today with PCM (Voice over T1/E1). • These samples are placed into an IP packet and sent over the network. • A far-end device reassembles the voice stream on the other side.
    • Typical VoIP System Elements Softswitch • Gatekeeper • Call-Manager • Softswitch • Network-Server • Client Registration • Authentication • Status • Number Mapping • Accounting Terminals PSTN IP Phone IP Network Gateways • PSTN, ISDN • V5, SS7 Multimedia PC • User Interaction • Dial-tone, Ringtone, etc • Registers with Call Control • Media Conversion • Network Interworking • Signaling Conversion • Media Conversion • Packetization and reassembly • ISDN, PSTN, V 5.2, SS7
    • VoIP Technology: Media Standards Various CODECs are used for voice compression: Codec Codec Rate [kb/s] IP BW/Call one way [kb/s] Packet Length [ms] G.711 64 96 10/20 Toll quality, full rate, lowest delay G.726 16 - 40 32 - 56 20 Free: good compromise G.729 8 24 20 Licensed: best compromise G.723 @ 6.3 6.3 17 30 Licensed: low bandwidth GSM-EFR 12.2 - Comments For Reference: mobile phones Recommend G.711 if no bandwidth limitations apply!  Toll Quality  Low Delay  Best all around!
    • Fax over IP: watch out for this 1) Fax Relay, T.38 2) Fax Bypass, G.711 The Fax tones are terminated in the gateway, relayed in packet form and re-modulated at the far end. + Uses less bandwidth + Is reliability(offers redundancy) - Is less interoperable The Fax is carried in a G.711 voice channel just like a regular phone call. T.30 Fax A/D + Is interoperability with any gateway - Uses more bandwidth - Is less reliability Fax-Relay, T.38 packets IP Fax Bypass, T.30 Fax over G.711, 96Kb D/A T.30 Fax
    • Signalling Standards Snapshot  Signaling protocols defines how VoIP equipment communicate to actually set-up, establish and release telephone calls over IP networks. For example – Ring, Talk and Hang-up.  H.323  The oldest and most widely supported call control protocol.   Current Version is v4 (we support it now!) Is actively enhanced by the international standards community  Offers the most interoperability between 3rd party equipment.  Business focused  SIP  The newest of the call control protocols   IETF (Internet based); looks like html; most extendable Messaging for all types of user devices (phones, PC, GSM)  Carrier/CLEC focus  We support it today!  MGCP  Oriented towards softswitch carrier architectures  Focuses on the central site over CPE  Supported in SmartNodes today!
    • VoIP Terms Defined (1)  Softswitch Call control and route server in a VoIP network providing user AAA services and intra-network call switching. This is Independent of the VoIP protocol (H.323, MGCP, SIP).  Gatekeeper (GK) H.323 specific term. The GK is responsible for the management of the users (clients) and gateways in his H.323 area (zone). Implemented as software on a server or integrated as a function in a Gateway.  Gateway (GW) (This is what SmartNodes do!) Signaling or Media-Gateway (may be combined in one equipment) provides conversion between different networks-protocols or technologies.  H.323 Client Terminal in an H.323 network. IP-Phone or Soft-Phone (e.g. NetMeeting).  AAA User Authentication, Authorization, Accounting. Required functions for a commercial VoIP Service. Carrier centric and provided by Gatekeeper.
    • VoIP Terms Defined (2)  RAS Registration Authentication Status: H.323 Sub-protocol used to register “log-in” an H.323 Gateway or Client at the Gatekeeper  SIP User Agent SIP Equipment or software representing an end-user. The user agent includes a a SIP client (to initiate calls) and SIP server (to terminate calls). This is “inside” a SmartNode gateway.  SIP Network Server SIP Equipment or software in the network required to register and localize User Agents and their end-users. A SIP Network Server can operate in redirect or proxy mode. This is a server box routing calls.
    • Telephony Terms THESE YOU HAVE TO KNOW! BRI, S0, S/T 2 B + 1 D channel > 2 voice connections E1, PRI, S2m 30 B + 1 D channel > 30 voice connections T1, PRI 23 B + 1 D channel > 23 voice connections FXS “phone jack”, 2-wire POTS interface FXO “line jack”, 2-wire POTS interface ISDN Switch 4-wires 4-wires IP BRI/PRI NT TE NT TE POTS Switch 2-wires 2-wires IP FXS FXO FXS FXO
    • Building Blocks for QoS (2) For Example: Traffic Shaping  A Shaper can limit a Traffic Class to a defined bandwidth  Frees Bandwidth for real-time (voice) traffic without packet loss  Improves the Performance of interactive Applications  Very usefull for short connections e.g Web requests Bandwidth max Bandwidth max voice unused voice unused WWW Data Burst Web-Page SH Data Burst Data Burst Web-Page Web-Page t t
    • Smart combination of QoS and VoIP The integration of QoS Router and VoIP Gateway makes things much easier • Traffic Classes are defined at network interfaces • No tagging necessary for point-to-point links • Optimal bandwidth usage and control Classification Marking Conditioning GW LAN GW Q Q WAN Link LAN
    • Products
    • Patton VoIP products Multiport FXS VoIP GWs SmartNode 4900 Series SIP Phones SmartLink 4050 Modular VoIP Routers SIP ATAs SmartLink 4020 Series SIP IP PBX SmartNode 2000 Series SmartLink 4520 Up to 200 Extensions Voice Mail, voice to e-mail Web Configured Multiport FXS/FXO VoIP Gateways SmartNode 4110 Series Multiport FXS/FXO VoIP Routers Multiport ISDN VoIP Routers SmartNode 4520 Series SmartNode 1000 Series Multiport FXS/FXO SyncSerial VoIP IADs SmartNode 4830 Series SOHO ISDN VoIP Router SmartNode 4552 Series
    • New Products: SmartNode™ 4110 Series FXS/FXO ToIP Media-Gateway • • • • • • • • • • • • SN4112, SN4114, SN4116, SN4118 2-8 port analog VoIP Gateway 2/4/6/8 2-wire FXS ports 2/4 2-wire FXO ports 10/100bTx Ethernet LAN connection Console Port: RS-232 RJ45 QoS support • TOS, DiffServ • 802.1p PPPoE client, DHCP client Memory 32MB SDRAM / 4MB Flash Integrated or external universal power supplies • 100-240 VAC (50/60 Hz) Desktop Chassis CE mark, EN 60950 When to use... Use the SN4100 series to integrate analog terminals – phones and PBXs – in to VoIP networks
    • SmartNode™ 4520 Series Dual Ethernet ToIP Router-Gateway • • • • • • • • • • • • SN4112, SN4114, SN4116, SN4118 2-8 port analog VoIP Gateway 2/4/6/8 2-wire FXS ports 2/4 2-wire FXO ports Dual 10/100bTx Ethernet LAN/WAN Console Port: RS-232 RJ45 Full QoS support • TOS, DiffServ, 802.1p • Traffic Management Full featured IP-Router • NAT/PAT, PPPoE, DHCP, ACL, QoS Memory 32MB SDRAM / 4MB Flash Integrated or external universal power supply • 100-240 VAC (50/60 Hz) Desktop Chassis CE mark, EN 60950 When to use... Use the SN4500 Series as an CPE Access Gateway for analog voice and data on any broadband access; Cable, DSL or WLL
    • NEW: SmartNode™ 4552 The SmartNode™ 4552 is a Voice over IP CPE for ISDN BRI/So users. It combines a feature rich Broadband Access Router with advanced Quality of Service features and high-quality VoIP for ISDN Terminals. 10/100 Ethernet WAN For universal connectivity to DSL, Cable, WLL or Fiber uplinks 4 port Ethernet Switch 10/100bTX For SOHO LAN connectivity. Connect PC, Printer, WiFi Bridge without extra hub or switch 2 ISDN BRI/So ports Insert the Gateway between your installed ISDN Terminals and the ISDN NT for simple installation and universal call routing Life-Line Bypass A bypass Relay connects the local ISDN port directly to the fallback line in case of power failures.
    • SmartNode™ 1200 / 4552 Typical Installation Example of an Installation with a DSL Access ISDN Fallback ISDN NT ISDN S/T ADSL Annex B VoIP Access Copper Splitter DSL Modem Ethernet 10bT Internet Access
    • SmartNode™ 1400 Integrated Broadband Access Router and VoIP Gateway • 4-Channel VoIP Gateway • 2 ISDN BRI NT/TE configurable • Lifeline: Bypass switch between BRI Ports • LAN/WAN: 2 x 10bT Ethernet • Console Port: RS-232 RJ45 • Full featured 10 Mb/s Broadband Access Router • NAT/PAT, ACL/FW, PPPoE, DHCP, QoS • CPU Motorola MPC850 @ 50 MHz • Memory 16MB SDRAM / 4MB Flash • Integrated universal power supply • 100-240 VAC (50/60 Hz) • Desktop and Wall-mount Chassis • CE mark, EN 60950 • Optional Line Power with PM-BRI-ext When to use... Use the SN1400 for dual ISDN BRI PBX networking or LAN gateway. Stack for n x BRI.
    • SmartNode™ 1400/4634 Typical Installation Example of an Installation for PBX Networking with 4 simultaneous VoIP calls Site A Site B PSTN 2 x ISDN S/T Data Network DSL Modem VoIP Network
    • SmartNode™ 2300 Modular Serial/Ethernet Access Router and VoIP Gateway            • • Up to 60 VoIP channels (2xPRI) 10/100bT LAN 10bT WAN or DMZ X.21/V.35 Serial WAN port 3 PMC Expansion slots ISDN PRI, BRI and FXS ports with respective Interface Cards Full featured 10Mb/s Wire speed routing  NAT/PAT, ACL/FW, DHCP, PPP, FR, QoS CPU Motorola MPC860 @ 50 MHz Memory 16MB SDRAM / 8MB Flash Internal power supply: 100-240 VAC (50/60 Hz) When to use... 19” 1HU Desktop or Rackmount chassis Use the SN2300 with up to 60 CE mark, EN 60950 Optional Line Power with PM-40V-int VoIP channels as enterprise CPE or PBX networking gateway
    • SmartNode™ 2300 Interfaces ETH 0/1 Ethernet 10/100bTX LAN Voice Access 3 Interface Card Slots • PMC Format • PCI (packet) interface • PCM (circuit) interface ETH 0/0 Ethernet 10baseT WAN or DMZ Data Access Serial 0/0 X.21, V.35 WAN port for PPP, FR Router Console: RS232, RJ45
    • SmartNode™ 2400 Modular Ethernet Access Router and VoIP Gateway  Up to 120 VoIP channels (4xPRI)  Dual 10/100bT LAN/WAN  Full featured 100Mb/s Wire speed routing  NAT/PAT, ACL/FW, DHCP, PPPoE  CPU Motorola MPC750 @ 333 MHz  Memory 32MB SDRAM (upgradable) / 8MB Flash  19” 1HU desktop or rack-mount aluchassis  Internal power supply: 100-240 VAC (50/60 Hz) • CE mark, EN 60950 • Optional Line Power available with power module: PM-BRI-ext When to use... Use the SN2400 with up to 4 ICE1V/T1V and 120 VoIP channels as CO gateway
    • SmartNode™ 2400 Interfaces ETH 0/0 and 0/1 FastEthernet 10/100bTX LAN or WAN 4 Interface Card Slots • PMC Format • PCI (packet) interface • PCM (circuit) interface Console: RS232, RJ45
    • SmartNode™ Interface Card IC-E1V ISDN Primary Rate interface Card for SmartNode 2000 Series  30-channel VoIP Gateway Card  1 ISDN PRI E1, S2m port  NT or TE configurable  Full Codec and Fax over IP support  G.711, G.726, G.729, G.723  T.38 Fax-Relay  G.711 Fax-Bypass  Echo Cancellation, DTMF Relay  PMC standard form factor  No E1 data on this card When to use... Use the IC-E1V for PBX networking in a CPE or as concentrator port in the CO gateway. Use up to 2 in 2300 and 4 in 2400
    • SmartNode™ Interface Card IC-T1V ISDN Primary Rate interface Card for SmartNode 2000 Series  24-channel VoIP Gateway Card  1 ISDN PRI port  NT or TE configurable  Full Codec and Fax over IP support  G.711, G.726, G.729, G.723  T.38 Fax-Relay  G.711 Fax-Bypass  Echo Cancellation, DTMF Relay  PMC standard form factor  Signaling ISDN NI-2 When to use... Use the IC-T1V for PBX networking in a CPE or as concentrator port in the CO gateway. Use up to 2 in 2300 and 4 in 2400
    • SmartNode™ Interface Card IC-4BRV-8V 4 Port ISDN Basic Rate interface Card for SmartNode 2000 Series  8-channel VoIP Gateway Card  4 ISDN BRI, So, S/T ports  configurable NT/TE • Configurable pt-pt / pt-mpt  Full Codec and FoIP support  G.711, G.726, G.729, G.723  T.38 Fax-Relay  G.711 Fax-Bypass  Echo Cancellation, DTMF Relay  PMC standard form factor  Optional Line Power with PM-48V-int When to use... Use the IC-4BRV-8V ISDN BRI PBX networking with call routing and local PSTN breakout.
    • SmartNode™ Interface Card IC-4FXS 4 Port FXS Interface Card for SmartNode 2000 Series  4-channel VoIP Gateway Card  4 Euro POTS ports  2-wire FXS loopstart  Full Codec and FoIP support  G.711, G.726, G.729, G.723  T.38 Fax-Relay  G.711 Fax-Bypass  Echo Cancellation, DTMF Relay  PMC standard form factor  Requires power module PM-48V-int to be installed inside 2300 or 2400 for line and ring power When to use... Use the IC-4FXS for analog phones or PBX systems at the CPE
    • SmartNode™ 4960 It is not modular! 1E1 4E1 VoIP license from 15 to 120 channels PROMOTION UNTIL END OF OCTOBER: You pay one and we give two
    • VoIP Applications IP Telephony in the LAN Enterprise networking with VoIP Multi-Service Carrier Access
    • Applications in the Provider Market  Multi-Service Broadband Access Internet Services Voice Services  Bind Customers through Service Differentiation Application Services PSTN  Bind Customers with Bundled Services  Cut Operation Costs through Converged Service Delivery Provider Backbone PowerLine BB Access WLL xDSL CATV Leased Lines SmartNode Customer Premises Gateways Customer Networks
    • Applications in Enterprise Networks Global Enterprise Communications • Cut WAN costs in office to office communication • Long distance and international toll bypass • Telephony integration of Home Offices • Telephony integration of remote branches PSTN SmartNode SmartNode IP Network Internet Ethernet LAN Branch Office Main Office PBX Extensions
    • PBX Networking Installation (1) Site B Site A 2 x BRI PBX 2 x BRI TVA PSTN 4 x BRI 4 x BRI X.21 X.21 leased line Equipment • SmartNode 2300 with 2 x IC-4BRV • SmartNode is used as Gateway, Router and Switch • 100bT LAN • Serial WAN 100bTX
    • PBX Networking Installation (2) SN4528 SN4114 IP/WAN/VPN WWW 8-lines 4-lines SN4526 6-lines Customer Benefits • Interoffice Toll Bypass based on legacy PBX installation • Telephony, Internet Access and VPN with a single device
    • PLAR – Private Line / Hot line IP/WAN/VPN WWW SN4114 SN4114 Customer Benefits • Toll free hotline service over existing Data network Infrastructure • Connectivity on any IP network
    • Enterprise Home Office PBX Extension Main Office PSTN 5 xBRI BRI PBX Home Office 2 xBRI SN1200 Public Gateway SN1400 Gatekeeper BRI LAN Router NAT Firewall Modem Internet Modem
    • Enterprise Opportunity Analysis Check if it is a SmartNode Opportunity? Condition Multiple PBXs at different sites Remote Offices without PBX Home Office Access to central PBX Requirement The sites are already connected to the Internet with sufficient bandwidth (50 to 100k per voice connection), or a connection can be established easily. (e.g. Leased Lines, DSL, Cable Modem, Laserlink, WiFi etc.) Environment The PBXs are not networked. Calls between sites go through the PSTN The PBXs are already networked using QSIG SmartNode Solution: toll bypass over IP. Save on the monthly telefone bill. SmartNode Solution: QSIG networking over IP. Save the cost of dedicated leased lines. Solution SmartNode Solution : remote sites are served as IP extensions of the central PBX.