Session Initiation Protocol (SIP) is the transport technology for person-to-person real time traffic over the Web. Its defining specifications come from the SIP working group of the Internet Engineering Task Force. SIP provides access to the public switched telephone network for voice data at 3 kHz bandwidth and common number dialing using Voice over IP (VoIP). It can also be expanded to handle IP telephony combined with video and instant messaging. Future improvements will allow SIP applications such as video conference calls, application sharing, home monitoring, and interactive gaming.



SIP is in most cases thought of as a method to implement the functionality of common telephony over an IP network. It is replacing the older, less versatile protocols used in the old days such as H.323 and MGCP. These older protocols functioned at a very low level to connect IP phones to the public telephone network. SIP, on the other hand, provides a sophisticated and straightforward way to network the enterprise. For instance, SIP uses email addresses as the SIP address instead of a telephone number over the standard phone network.



Suppliers of SIP components are quickly developing innovative products and software to get the upper hand in this new Internet communications method. SIP telephones, PC client software, SIP servers, routers, and firewalls are now obtainable from companies such as Ingate Systems and Cisco.



Prior to implementing a SIP solution in your company, you should consider the proper configuration of your corporate firewall to accept SIP. Many of the typical firewalls already installed in business offices are not designed to allow the SIP protocol. First, SIP media streams are transferred over dynamically allocated UDP ports that are often closed on firewalls. Second, SIP clients within a firewall can not be accessed using IP addresses because these addresses are local and unique to the LAN. Third, you need to ensure that either your T1 line carrier or Metro fiber service is able to support the SIP protocol from your internal network to the outside world. Your IT manager will need to evaluate how to correctly support SIP to overcome these technical problems. By including a SIP proxy and registrar for managing the firewall, it is feasible to deal with complex SIP scenarios for reliable and confidential communications.



SIP trunking brings a number of perks to the business user such as cost savings, networking flexibility, and emergency disaster recovery. It can eliminate the high subscription costs of basic rate interfaces and primary rate interfaces. It also optimizes the bandwidth usage by providing both voice and data over the very same connection. Businesses will have the flexibility to route calls to preferred carriers and the redundancy of using several service providers.





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Effective communication in business is crucial to having good relationships with customers, associates and partners. A well-organized and intelligently used phone system can help a business serve its customers more efficiently, and share ideas and information with associates and partners effectively.



Before purchasing a business phone system for your business, you should think about why you need a phone system and what you can expect from it. Consider the following questions:

• Do your employees need separate extensions?
  
  
  
• Will your employees benefit from voicemail?
  
  
  
• Will your people work from remote locations?
  
  
  
• How many employees do you have now?
  
  
  
• How many employees will you add in the near future?
  
  
  
  Survey the market for the various types of phone systems, latest features and technology. Appreciating the usability of the features will help you in selecting a phone system that will benefit your business in the long run.
  
  
  
  Analog versus digital phone systems
  
  
  
  Analog phones transfer sound through continuous waves. These signals are easily disturbed by external interference such as noise and weather conditions, which is why sound is sometimes fuzzy in analog phones. Digital phones digitize the signal into binary units that are recombined at the other end. This makes the quality of sound much better in digital phone systems.
  
  
  
  Digital phone systems are more easily customized than analog phones. Customization of software is easier and cheaper than hardware. Digital phones can be reprogrammed easily whereas analog phone systems can be reprogrammed only by the manufacturer or an expert in analog phone technology.
  
  
  
  Digital phone systems are costlier than analog phone systems. The initial setup, programming and maintenance of the digital phone system can only be done by trained technicians.
  
  
  
  Popular phone systems for small businesses
  
  
  
  PBX: PBX (Private Branch Exchange) systems facilitate internal and external calls. These phone systems were very expensive initially, but technology has made them cheaper and accessible to smaller businesses now.
  
  
  
  VoIP: Evolving technology and the internet makes VoIP an affordable and convenient option for small businesses. Its shortcoming is its total dependence on the Internet. If there is an internet outage, the phone system also gets disconnected.
  
  
  
  Hybrid PBX: Hybrid PBX phone systems combine VoIP and PBX systems, making it a viable option. Businesses can cut down costs by using the VoIP systems, and fall back on the PBX system when there is a network outage.
  
  
  
  Desirable features in a business phone system
  
  
  
  Some standard features of a phone system that are very useful and can improve your business’ productivity radically:
  
  
  
• Call forwarding: forwards calls to an alternate number
  
  
  
• Call waiting: allows suspension of the current call to attend the incoming call
  
  
  
• Speakerphone: allows multiple people to interact through a speaker and microphone
  
  
  
• Auto attendant: queries callers and connects them to the required extension without involving an operator
  
  
  
• Remote voicemail access: to keep track of voicemail messages from anywhere
  
  
  
• Speed dialing: to connect to important contacts quickly
  
  
  
• Faxing capabilities: to enable fax
  
  
  
  You might consider these advanced features too:
  
  
  
• Email notification on receiving voicemail
  
  
  
• Saving conversations on a hard drive
  
  
  
• Recording conversations and attach them to emails
  
  
  
  Ask other businesses about their experience with their telephone installed at their offices, and the features they found beneficial. Users can give a truer version of the performance and advantages of phone systems than vendors. Your business will benefit by increasing productivity and saving costs by using a phone system appropriately.
  
  
  
  
  
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A phone system is one of the most important and necessary purchases for your business. The right phone system can increase employee productivity and enhance the perception of your business for your customers, clients and stakeholders. Let us first review some common phone system terminology.

• Ports are the number of connections that can be handled by your phone system and include both incoming lines and extensions.
  
  
  
• Trunks or Lines are the number of outside telephone lines.
  
  
  
• Cabinet, also known as central office (CO), key system unit (KSU), central unit or base, is the main box used for holding the phone system.
  
  
  
• Extensions are used for both internal and external communication. They refer to the unique numbers used for identifying phones, modems and fax machines. Extensions are internal to the business and connect to the outside world via the cabinet.
  
  
  
• Computer telephony integration (CTI) consists of a set of applications that enable integration of your phone system with a computer. CTI provides features like incoming call routing, one click dialing, video conferencing, telephone directory and caller identification in addition to allowing the computer to receive voice, data and fax calls.
  
  
  
  Types of PBX Phone systems
  
  
  
  KSU-less systems are the cheapest phone systems and offer limited features. They are usually suitable for small businesses with less than ten employees. KSU-less system does not need a cabinet as the telephones have all the routing software installed in them. A KSU-system has certain limitations. These systems are not compatible with Key and PBX systems and may offer little utility if your business expands and upgrades to a better phone system. Additionally, these systems are not supported by vendors and you will have to take care of their servicing and installation.
  
  
  
  Key Systems or Key Telephone Systems are suitable for medium-scale businesses with less than forty employees. A set of buttons corresponding to the number of available phone lines are provided with each phone. These phone systems can be easily upgraded but they offer little customization abilities in comparison to other systems.
  
  
  
  Private Branch Exchange (PBX) phone systems offer a wide range of features, and can be easily upgraded and customized. Though most expensive, they enable cost reduction as you scale, making them most suitable for large businesses with over 100 employees.
  
  
  
  Hybrid systems- These systems combine the cost-effectiveness of key systems with the range of features of PBX systems.
  
  
  
  Voice over Internet Protocol (VoIP) is a business phone that uses the internet for call routing and forwarding. It provides a cost-effective and portable substitute for KS and KSU-less systems. The router can be taken from place to place and plugged into any internet connection. However, each time the geographic location of the router is changed, you must inform your VoIP service provider, so that emergency calls can be routed to the nearest call centre. The biggest disadvantage of VoIP systems is their complete dependence on the internet connection. A poor connection deteriorates call quality, whereas connection loss can cause the system to fail altogether. Remember to discuss security and encryption issues with your provider before purchasing a VoIP phone system.
  
  
  
  How to pick a phone system?
  
  
  
  First assess your current and future business needs to estimate the required phone system size, expected business expansion in two-three years, available budget, and the required phone features and accessories like voice mail, caller id, one-touch dial, forwarding and conferencing. Lines and extensions are the key factors that determine the system size. After you have clearly identified your needs find a phone system that meets all your requirements.
  
  
  
  How much would a phone system cost?
  
  
  
  Prices of key and hybrid systems usually range from $350-$1000 per user, that of PBX systems from $800-$1000 per user and KSU less systems from $130-$225 per phone. Phone system prices depend on various factors like telephone cabinet, the actual phones, add-ons, training, service, programming, and future modifications.
  
  
  
  Before purchasing a phone system, take into consideration the total cost of ownership. Customizable, expandable, reliable, and upgradable phone systems have a higher initial cost per user but prove economical in the long run.
  
  
  
  How to pick a phone vendor?
  
  
  
  Your telephone vendor usually takes care of supply, installation and programming of phone systems. Select a vendor who has completed a number of installations of your chosen system. Such a dealer will be more familiar with the problems that can occur and their solution. Seek demonstrations of different phone systems to determine the best one for your business. Most dealers will agree to train your employees in the use of the phone system.
  
  
  
  Vendors also provide a combination of warranties with your phone system. A service level agreement determines the vendor’s response time to a phone system problem. Additionally, the vendor should provide you with regular hardware and software updates. Always check references before making your purchase, especially inquire about the vendor’s quality of service and experience.
  
  
  
  
  
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We all know that there are phone services out there that help save you money on your monthly phone bill, but how many of you knew that there is now a completely free phone service out there?



Probably not to many of you.



ooma Core VoIP Phone System with No Monthly Phone Service Bills



The OOMA Core VOIP Phone System, is not the cheapest to buy upfront, but there is absolutely NO CHARGE for monthly service. Using this newest voip service you will get long distance calling, answering service, and caller id at no cost!



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Of course it is new and there are not a lot of consumer reviews about this product out there yet. However, in concept this is a dream come true for many of us. There is no reason not to give it a try when it is being backed by a huge name like Amazon.com You know that you will have an easy return from these guys if you run into any problems.



I am currently using the Magic Jack VOIP Phone Service and I simply love it. Now it is not totally free like the ooma Core VoIP Phone System but for 19.99 Per Year, I have no problem with the great call quality or the price right now. Once this new service has been out for a while, I am sure that I will check it out and see if the quality is better or worse, but I am satisfied with my magic jack for the time being. You can get a Free Magic Trial here, if you want to see what it is all about.



If you are currently paying a phone company, then I don’t know what to tell you besides you are getting taken advantage of. The prices that phone companies charge are outragous and there is no reason not to take advantage of huge savings that voip phone services will offer you. In most cases people save from 50%-80% off of their normal phone bill by switching, so maybe it is time you look at the new ooma Core VoIP Phone System with No Monthly Phone Service Bills or our tried and true favorite, the Magic Jack’s Cheap Internet Phone Service.



To learn more about VOIP and how to save read on..



So What is VOIP?

Learn how voip makes phone saving possible

VOIP stands for “Voice Over Internet Protocol”. This simply means a new way to make voice phone calls using the internet in stead of using phone lines to connect the call. This sounds like a very complicated method, but in all actuality you do nothing different than you would normally do and the calls cost considerably less!



You can attach the same phone you are already using to the computer and then use it like you always have. The only complicated stuff that happens is invisible to you.



You can make these phone calls on the internet at a fraction of the cost of using a home phone because consumers all over the word using broadband internet are sharing the cost of the back-end network used to deliver the phone calls opposed to att having to build a network from the ground up for phone calls to take place on a standard land line.



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In the business world, communication is immensely important. It is a fact that businesses today are now taking advantage of the latest communication technology available, such as the internet to communicate with business associates and also to their clients. In fact, the internet is now used for technical support and customer care services by businesses in order to keep a direct line between their clients and the company.



One such technology is called VoIP or the Voice over Internet Protocol. Many businesses and regular people are now hooking up the VoIP system in their businesses and homes to replace their conventional telephone. You may wonder why.



This is because of the features and benefits that consumers can take advantage of. VoIP provides cheaper and free calls and it provides numerous features that are expensive or in some cases, impossible in a conventional telephone. VoIP is a phone system that takes advantage of the internet to transmit and receive data signals. This means that the data signals are in digital format, which results in clearer and faster transmission and reception of data signals.



VoIP has integrated services that are impossible in a conventional telephone. The standard features include audio conferencing, video conferencing, three-way calling, caller ID, answering machine features and much more. The standard package is free. All you need is to subscribe to a VoIP service provider and a broadband internet connection in order to start taking advantage of this technology. You will also need a computer or an internet phone.



Some VoIP service providers can provide you with the internet phone and some are in software format where you can use your home computer as the telephone.



Another great advantage of VoIP phone system is that it will enable you to place free phone calls to anyone around the world as long as the person you are calling is also subscribed to the same VoIP service provider you are subscribed in. This can be very convenient. Also, since the data is transmitted through the internet, calls to conventional land line phones, mobile phones, and other VoIP service provider subscriber is much cheaper.



There are also wireless VoIP where you will need a WiFi phone system hooked up in your home. What this does is it enables you to call anywhere you are as long as there is a WiFi signal in your area. This means that VoIP can also act as a mobile phone.



WiFi VoIP phones are very much in demand by many people today. This is because you don’t have to hook up your VoIP phone system in the internet in order for you to place a call. All you need is to bring your VoIP phone anywhere in the world and look for a WiFi signal to place your calls.



If WiFi broadband or high speed internet service in your area is available, you can also get a wireless VoIP phone system. Imagine, with this phone, not only will you be able to call someone for free or at a very low cost, but you can also call wherever you are as long as there is a WiFi signal.



WiFi is one of the most popular technologies available today. VoIP is now taking advantage of this technology for you to be able to have much more convenience when placing a call.



In order to maximize its features, you have to look for a WiFi VoIP service provider that many of your acquaintances are also subscribed in. By subscribing in this kind of VoIP service provider, you will be able to place free calls to your family and friends. You will also be sure of the quality of its services because more people are subscribed in this VoIP service provider.



So, if you want free phone features that conventional phone lines charges extra from, you should consider getting a VoIP phone system. This will enable you to take advantage of the extra features for free.



You will also be able to save a lot of money from placing long distance calls. With VoIP, you will never have to count the number of minutes again, knowing that long distance calls are so affordable. Talk as long as you like with a VoIP phone system.



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