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VoIP Applications for the Small Business

VoIP Applications for the Small Business. Agenda. Evolution of Communications Digital vs VoIP How VoIP works as a transport layer What is “The Cloud”? Common Applications Advantages of VoIP Misconceptions about VoIP. Evolution of Communications. Scream at your Neighbor. IP PBX.

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VoIP Applications for the Small Business

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  1. VoIP Applications for the Small Business

  2. Agenda • Evolution of Communications • Digital vs VoIP • How VoIP works as a transport layer • What is “The Cloud”? • Common Applications • Advantages of VoIP • Misconceptions about VoIP

  3. Evolution of Communications Scream at your Neighbor IP PBX Phone Guy Gets Yelled at! 2 Cans and a String CPE PBX using IC Chips Central Office

  4. Digital vs VoIP • Digital -Like a Subway or a Train • Goes Point to Point • Lots of people in the same car! • Predetermined stops • Not Very Flexible • VoIP – Like a Taxi • Dynamic in direction • Single Occupant • Goes to one address • Very Flexible

  5. Telephone Systems • Telephones are directly connected to the system • Telephones - limited distance from the KSU • Telephones are dumb terminals • System Hardware controls the configuration size • Communications is most often proprietary • Use Pulse Code Modulation • Use Time Division Multiplexing

  6. Pulse Code Modulation • Encoder • Time Division Multiplexing is the distance between the samples • Voice Conversation is transmitted in 0’s and 1’s

  7. Transport Layer Ext 1401 Voice Ext 2407 Voice PBX 2 PBX 1 Digitized Voice All 0’s and 1’s Digitized Voice All 0’s and 1’s Transmitted Via T1/PRI Transmitted Via T1/PRI PSTN T1/PRI transport E&M Emulation 010001110101 010001110101 Ext 401 Voice Ext 407 Voice PBX

  8. What is VoIP • Voice over Internet Protocol is the transmission of voice over a network – Not the Internet • Open Systems Interconnection (OSI) Model: • 7 = Application – processes applications • 6 = Presentation – data representation and encryption • 5 = Session – Inter-host communications • 4 = Transport – End to end connections and reliability (TCP) • 3 = Network – Path determination and logical addressing (IP) • 2 = Data Line – Physical Addressing (MAC addresses & LLC) • 1 = Physical – Medial, signal and binary transmission

  9. 19216 WEST 81ST x x x Address Driven OFFICE 5 OFFICE 1 OFFICE 5 OFFICE 1 192.16 West 8.1st – Office 1 192.16 West 8.1st – Office 2 192.16 West 8.1st – Office 3 192.16 West 8.1st – Office 4 192.16 West 8.1st – Office 5 192.16 West 8.1st – Office 6 x x x OFFICE 3 OFFICE 3 x x x x x x IP Address 192.168.1.1 192.168.1.2 192.168.1.3 192.168.1.4 192.168.1.5 192.168.1.6 OFFICE 6 OFFICE 4 OFFICE 2 OFFICE 6 OFFICE 4 OFFICE 2 x x x x x x Server Room x x x x x x

  10. Transport Layer Ext 1401 Voice Ext 2401 Voice PBX 2 PBX 1 Digitized Voice All 0’s and 1’s Digitized Voice All 0’s and 1’s 62.203.3.1 67.203.5.1 Gateway Gateway Packets addressed and sent over the Internet Packets addressed and sent over the Internet Internet transports from one location to another using address Internet

  11. What is the Cloud? 66.210.10.1 127.107.7.1 62.203.3.1 64.201.100.4 66.166.1.4 62.2.200.4 65.25.2.2 61.200.2.3 65.16.200.5 168.68.2.6 66.210.10.2 127.107.7.2 127.107.7.3 66.166.1.12

  12. Common Applications • Remote Worker • Unmanaged Network – Latency and jitter • Bandwidth Limitations • Only need one static IP Address 192.168.100.1 67.28.190.127 WAN Internet 167.19.120.111 301 302 303

  13. Common Applications 192.168.1.120 • Remote Workers • Gateway Registration • WAN Port 192.168.100.1 125.105.90.201 67.28.190.127 Internet 167.19.120.111 112.47.99.98 192.168.22.199 301 302 303

  14. Common Applications • Creating a Voice Network • Unmanaged Network – Latency and jitter • Bandwidth Limitations • Only need one static IP Address Internet 67.28.190.127 122.24.50.13 301 302 303 301 302 303

  15. Common Applications • Adding to the Voice Network 192.168.22.110 192.168.22.111 192.168.11.110 192.168.11.111 WAN LAN LAN Internet 67.28.190.127 122.24.50.13 301 302 303 301 302 303

  16. Common Applications • Adding SIP trunks to the Voice Network 192.168.22.110 192.168.22.111 Internet 67.28.190.127 SIP Trunks 301 302 303 SIP Trunks

  17. Common Applications • Two locations 192.168.22.110 192.168.22.111 192.168.11.110 192.168.11.111 Internet 67.28.190.127 122.24.50.13 301 302 303 301 302 303 SIP Trunks

  18. Advantages to VoIP • Standards of Interconnectivity • Dynamic in Installation and Application • Unlimited in Size – Global Network • Remote workers • Relatively easy to create a “Voice Network” • Easy to do MAC Work • Single Cable Runs (Maybe) • Tree Topology

  19. Tree Topology 1 x x x OFFICE 5 OFFICE 1 x x x OFFICE 3 192.168.1.5 192.168.1.3 192.168.1.1 192.168.1.6 192.168.1.2 192.168.1.4 OFFICE 6 OFFICE 4 OFFICE 2 x x x Server Room x x x

  20. Tree Topology 2 x x x OFFICE 5 OFFICE 1 x x x OFFICE 3 192.168.1.5 192.168.1.3 192.168.1.1 192.168.1.6 192.168.1.2 192.168.1.4 OFFICE 6 OFFICE 4 OFFICE 2 x x x Server Room x x x

  21. Disadvantages of VoIP • Remains Expensive for the Small Business • Can be difficult to troubleshoot • Standards are still evolving • Quality of Voice over an Unmanaged Network • Lags on Call Processing Functionality • External Interfaces • Line appearances and buttons

  22. Misconceptions about VoIP • I am going to save Money! • No more paying long distance toll charges • When I use VoIP I only need one cable drop per office • Using Remote workers will save me money because I can use a smaller office The Answer to all VoIP Questions is… It Depends

  23. Thank You!

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