1. October 6 University Faculty of Information Systems & Computer Science

2. Supervisors Prof. Dr. Mousa Ibrahim Prof. Dr. Ibrahim Farag Eng. Ahmed Abdel-Aziz Eng. Merna Samy

3. Project Team Work Ahmed Babaniaz Abdullah Abd Al-Aziz Khaled Sadi Hazem Yousif Sobaih Malek Tarek Ghithan Omar Ahmed Al-momani

4. Agenda Problem Definition What is VoIP and What Can it Do for Your Business? What is VoIP: Useful Terms What is VoIP: Service Quality Objectives Expected Results Project Plan Tools & Techniques Beneficiaries System Requirement Components of a VoIP Network Basic Components of a Traditional Telephony Network What is PSTN? References

5. Problem Definition A Company has at least two buildings (head quarter and branch) connected together with WAN, should implement telephony system such that reducing the cost and doing the most utilization for its resources IP WAN Headquarters Branch Applications Cisco Unified Communications Manager Cluster Applications Cisco Unified Communications Manager Cluster PSTN

6. What is VoIP and What Can it Do for Your Business? VoIP and IP telephony are becoming increasingly popular with large corporations and consumers alike. For many people, Internet Protocol (IP) is more than just a way to transport data, it's also a tool that simplifies and streamlines a wide range of business applications. Telephony is the most obvious example. VoIP or voice over IP is also the foundation for more advanced unified communications applications including Web and video conferencing that can transform the way you do business.

7. What is VoIP: Useful Terms Understanding the terms is a first step toward learning the potential of this technology: VoIP refers to a way to carry phone calls over an IP data network, whether on the Internet or your own internal network. A primary attraction of VoIP is its ability to help reduce expenses because telephone calls travel over the data network rather than the phone company's network. IP telephony encompasses the full suite of VoIP enabled services including the interconnection of phones for communications; related services such as billing and dialing plans; and basic features such as conferencing, transfer, forward, and hold. These services might previously have been provided by a PBX. IP communications includes business applications that enhance communications to enable features such as unified messaging, integrated contact centers, and rich-media conferencing with voice, data, and video. Unified communications takes IP communications a step further by using such technologies as Session Initiation Protocol (SIP) and presence along with mobility solutions to unify and simply all forms of communications, independent of location, time, or device. (Learn more about unified communications.)

8. What is VoIP: Service Quality Public Internet phone calling uses the Internet for connecting phone calls, especially for consumers. But most businesses are using IP telephony across their own managed private networks because it allows them to better handle security and service quality. Using their own networks, companies have more control in ensuring that voice quality is as good as, if not better than, the services they would have previously experienced with their traditional phone system.

9. Objectives Voice gateways to interconnect PSTN and WAN Call agent which will act as the central office (PBX) IP phones and analogue phones Media resources in order to implement call features Signaling protocols (sccp, h323, mgcp) Network devices (Routers and switches) Call features (call park, hold, transfer, conference and etc)

10. Expected Results Implementing telephony system over the company’s IP network (utilizing resources) Toll by-pass (reduce cost) Teho (cut-off long distance tariff to local tariff) Supplementary services

11. Project Plan Task Number Task NameStart DateEnd Date 1Requirement Analysis 2System Analysis 3System Design 4Implement IP Network 5Implement VOIP Network Implement VOIP Services 6Implement VOIP Quality of Services 7Implement VOIP Security 8System Integration 9Test VOIP System

12. Tools & Techniques Tools Microsoft Visio 2010 Techniques Object Oriented analysis and design (UML)

13. Beneficiaries Private or common sector companies Universities Institutes Governments agencies Small business companies Medium business companies and enterprise

14. System Requirement Hardware Requirement Cisco network devices (routers and switch) Servers (call agent) IP phones Media resources (Packet Voice Digital Signal Processor PVDM2-8) FXS / fXO card Software Requirement Call manager 6 over VMware

15. Components of a VoIP Network Application Server Multipoint Control Unit Call Agent IP Phone Videoconference Station Router or Gateway PSTN PBX IP Backbone

16. Basic Components of a Traditional Telephony Network BostonSan Jose Edge Devices CO Tie Trunks CO Trunks Local Loops Switch PBX PSTN

17. What is PSTN? PSTN stands for Public Switched Telephone Network. PSTN stands for Public Switched Telephone Network. It is the same thing as POTS (Plain Old Telephone System). It is the same thing as POTS (Plain Old Telephone System). It is simply the worldwide telephone network. We here refer to the old phone system. It is simply the worldwide telephone network. We here refer to the old phone system. It carries analog data. In contrast, VoIP uses digital data. It carries analog data. In contrast, VoIP uses digital data.

18. References http://www.cisco.com/ http://en.wikipedia.org/ http://www.voip-info.org/ http://www.voip-info.org/ http://www.wwworks-inc.com/ http://www.xten.com/ http://resources.nznog.org/ http://www.onlamp.com/ http://www.ietf.org/ http://www.ispa.at/