VOIP Case Study

The primary reason that Butler University decided to change their current system was due to the fact that their original provider was not fulfilling the university’s needs. Butler had originally used Centrex as their service provider. Centrex, being an older system, could not provide Butler University with the modern, more up to date features that they needed. The Centrex system was based on features that were over a decade old, and customizing this system was done easily by any means. Butler began to expand and certain departments began to expand. This caused issues with the current Centrex system because

The most reliable secured process has an endless relation between hardware and software communicator. There are many VoIP services that are been coming into the existing market for the users to make cheaper calls which would be useful for everyone like Fruing, Truphone, Vopium. There are two types of security linked or associated with the IP. There are certain ip key Exchange, which has unique key generator for protocol exchange and budget management. It has the features reliable communication of communication between two unique devices which initiates an encryption useful algorithm, a key based authentication method, and extracted group theory information.

When it comes to VoIP phone systems, the "Vo" part refers to voice over, and the IP part stands for having your phone calls routed over the Internet. Many business owners have opted for these phone systems because they are cheaper than having numerous and separate phones in the office. You do not have to use the network or telephone service to make phone calls, which lowers the overall cost. At the same time, there are advantages of using IP technology for telecommunication.

The purpose of confidentiality and security when on the phone to callers is so that no one irrelevant to the business gets that information. For example maybe when on the phone to a candidate and asking for personal details about their current phone number for example, if someone who wasn’t working in the business was in the room you wouldn’t repeat the number back to them as the person who isn’t relevant could then have that information to use.

1. A LAN has a data rate of 4 Mbps and a propagation delay between two stations at opposite ends of 20 μs. For what range of PDU sizes does stop-and-wait give an efficiency of at least 50%?

My second recommendation would be the use of Voice over IP (VoIP), which is a popular voice transmission and corporate networking platform. “All employees

monitor its own phone system in order to ensure that employees are using the system for its

Careful, the complexity of services can occasionally make it tough to recognize what you want and what you are getting. Whichever provider you choose, the thing to remember is VoIP is the starting point in UC. Once you have got that finalized, you can introduce the use of other UC options available, like messaging, presence, video, chat, mobile and other integration tools. Remember, there is no turning back once the workforce starts using UC and is dependent on tools like chatting, screen sharing and presence indicators. For UC to live up to team’s expectations, you will probably need companies like Zyrion or SolarWinds etc. to monitor your UC components.

Detaching unneeded network services might be a good way of hardening a system since it is considered as a way of securing the operating system. Also, considering having a system that helps to track down the malicious packets such as an antivirus system might help to deter the suspicious packets from going into SIP system.

Unified Communications has progressed toward becoming fairly a popular expression, yet we jump at the chance to allude to it as meeting, or union. Incorporating your office telephone framework with your PC condition is the ideal approach to enhance your business and streamline forms.

4) Against the background of your answer to questions #1 and #2, how should Cisco distribute VoIP products? Through voice VARs? Data VARs? Or both?

| * Card phones * Activated by a pre-programmed card for the holder making calls lasting a specific number of minutes * Paging and voice mail services * Allowed subscribers to receive and leave messages for other subscribers * New telecom infrastructure using radio transmission between outstations and central platform * Central platform routed calls to TTCL, which would direct calls to local, long-distance and international. TTCL levy a charge for directing each call

The reality is that there is no simple solution when it comes to regulating BYOD. Every organization is different and there are number of different factors that have to be taken into consideration.  First a company will have to decide which employees will be allowed access, as well as the types of devices

One of the largest obstacles VoIP needs to overcome is the issue of security. Just taking a look into the email of any person can show why this is the case. Spam is rampant in email and VoIP phones would be subject to the same spam problems. Scripts could be written to call numbers and speak or play the ad on the user’s cell phone. This could wreak havoc without proper laws and measures implemented to prevent this. There is also the issue of hackers gaining access to calls over the Internet. “VoIP devices such as IP phones, Call Manager, Gateways, and Proxy servers inherit the same vulnerabilities of the operating system or firmware they run on top of.” (Intrusion

The Vodafone case study has given us a good overall view of the company and shown the companies good and bad points, whilst showing the mobile phone business as a whole and explaining the ups and downs of the industry.