Product DescriptionVoice Over IP (VoIP) phone lines now represent over 50% of all new phone line installations. Every one of these new VoIP phone lines and handsets must now be protected from malicious hackers because these devices now reside on the network and are accessible from the Internet just like any server or workstation. This book will cover a wide variety of the publicly available exploit tools and how they can be used specifically against VoIP (Voice over IP) Telepho… More >> Practical VoIP Security
Posts Tagged ‘VoIP’
Manhattan Voice over IP VoIP Service
Manhattan, Subleasing on Madison Ave? Potentially thinking about moving to Park Ave or Lexington? Do you have a business in Manhattan or New Jersey that may move? If you answered yes to any of these questions, then you should think about your phone system and how you will move it to the new location. Traditional phone systems from Avaya, Cisco, NEC, Panasonic, Toshiba, Nortel, etc require some very careful planning for moves. These systems rely on traditional telephone lines like T1 or PRI ISDN, POTS lines, Tie Lines, Trunk Lines, etc. These lines give your business access to the PSTN. PSTN, what is that? Public Switched Telephone Network, this is what everyone connects to to talk to one another, or the “switch” that allows you to call California from your desk on the 13th floor on 5th Avenue. CATS can help you move this system, or we can help you choose a new system with less complexity. Moving PSTN lines is a burden. Now for the good news! How about this…Ready to move? Unplug your phone from the jack under your desk, place in moving box. Arrive at new office, plug in your phone at your desk, and LIKE MAGIC, your phone is ready to use at the new location. Replace your legacy telephone system with a new system from CATS Technology using proven technology and valuable per user pricing. It is simple, you pay per month for the amount of users that need a phone. No more maintenance fees, service calls, service fees, contracts to maintain, or parts to replace. CATS will install all of the necessary Power Over Ethernet switches for the phones, any VLAN required, VPN, Unified Messaging, Voicemail to Email, Outlook Connecters, Dial from Contacts facility, etc. The VoIP system from CATS Technology is delivered using proven technology blending the tradtional and Cutting Edge portions of the Internet and PSTN. The system that you rely on for your VOIP is only as good as the network it runs on. We use MPLS to deliver the system to your offices. MPLS is delivered to your office over a private carrier network. The MPLS network will be used for all voice traffic to the VoIP PBX. This same network may aslo be sufficient to deliver access to the Internet for your business. Creating a WAN is easy using this technology. All applications are different, and you may opt to agument your MPLS WAN with a site-to-site VPN using a SonicWall or Cisco firewall. An MPLS Network will Prioritize time sensitive applications (such as VoIP and video) Deprioritize network traffic (such as web traffic) Easily and affordably add additional locations to your WAN CATS Technology provides full IT Consulting Services in New Jersey and New York for your IT systems. We provide support on all systems 24x7x365 with our ITIL certified help desk. We offer local technical support in all areas of Brooklyn, Manhattan, Northern NJ, Monmouth, Morris, Essex and Bergen County. We have capabilities in EMR and EHR Systems, Full Microsoft Gold Competency, vmWare Certified, SonicWall Silver Medallion Partner, Top 40 Most Innovative MSPs. CATS Technology Solutions Group is a single-source provider of all the Business Technology solutions you need. Whether you want us to work as your IT department or simply support your current staff, we offer the agility you need to succeed in today’s ever-changing marketplace, boosting your company’s productivity while saving you money. visit www.catstechnology.com for more information, or call (866) 370-8994 Option #3. Email to sales@catstechnology.comwill be answered immediately. Joe Cistaro of CATS has particular expertise in HealthCare IT as it relates to workflow management within the practice. His under-standing of patient flow and clinical operations lead to ultimate IT success. Joe can guide a practice’s initiatives with any EMR or EHR software. He can advise on Public Wi-Fi, tablet PCs, EMR/EHR Consulting, Microsoft Server Infrastructure, WEB Technologies, programming, etc. CATS Technology Solutions Group is a single-source provider of all the Business Technology solutions you need. Whether you want us to work as your IT department or simply support your current staff, we offer the agility you need to succeed in today’s ever-changing marketplace,
Telecommunications Needs Handled with VoIP Baltimore
Having the ability to manage an assortment of feature capabilities on the telephone system of your company is easier than ever when business owners choose to use VoIP Baltimore business phone systems that are premise-base designed. The functionality and manageability of each of the features on different styles of these telephone systems is simple, is extremely cost-effective, flexible and promotes productivity. Higher production is achieved through the high level of reliability, speed and efficiency that company employees are able to take advantage of. What is so amazing is that these systems are a beneficial telecommunication solution for virtually any type of small business. ENS E-Key Network Solutions is the highest-rated business telephone company in Baltimore serving area businesses with expertise and a level of skill that simply cannot be found elsewhere. Meeting all of the telecommunication needs that arise for new and existing small business owners in Baltimore is top priority for ENS. For this reason, they ensure that all customers are protected with a full two-year warranty. When you make the purchase of VoIP Baltimore business phone systems, you are also provided with the option of obtaining extra protection for your equipment for up to 5 years. The telecommunication requirements of business owners is met with unrivaled experience when assistance is needed for selecting VoIP Baltimore business phone systems that can best meet the needs of a company. Small business owners of many types of businesses have agreed across the board that the excellent customer service and support extended by specialized professionals of ENS exceeds their expectations by far. If you are not fully convinced that VoIP Baltimore business phone systems would be advantageous to your company, consulting with an expert of ENS E-Key Network Solutions will certainly change your mind. Just a few of the advanced features that you can expect to receive on various models of VoIP Baltimore business phone systems include: Call Conferencing Auto Attendant Find Me/Follow Me Call Forwarding Caller ID Voice Mail Box Voice Mail Box & Email Features Fax Mail Now is the time to make sure your business benefits from the advancements continuously being made in the technology of telecommunications, and the only choice you need to make is VoIP Baltimore business phone systems. ENS is a Telephone Company in the Baltimore Maryland area that specializes in Business Telephone Systems. We offer additional services in the areas of Voice Mail Systems, Network Wiring & Service. Our service area covers Maryland and Washington DC.
How to Stop Packet Loss and Latency on Your Internet Connection from Killing VoIP
Most people have access to broadband Internet at home and at work. Broadband speeds continue to improve as well giving ample bandwidth for applications using Virtual Private Networks (VPNs), Voice over Internet Protocol (VoIP) and Video. However, many Internet connections will not support these applications as their quality is not sufficient. Insufficient quality means they are experiencing packet loss and latency or delays in transmitting packets. Symptoms of Packet Loss and Latency Problems with packet loss and latency can manifest intermittent symptoms including outages. Unstable Internet circuits can work fine for hours or days at a time before they will have periods of high packet loss. In addition, they may have occasional or sustained latency where it takes packets too long to travel to and from your business or home network. Frequent and intermittent outages are only one symptom of a poor quality Internet circuit. Packet loss and latency will cause trouble with any application that requires packets to arrive to their destination in a timely fashion with little or no retransmissions. Packet loss and latency will cause dropped or garbled VoIP calls, slow and choppy video and slow Internet. They may also cause VPNs between office networks to break halting work flow until the VPN is reinitiated. Do not give up on these applications working properly Today’s broadband Internet circuits should be able to handle VoIP, video, VPNs and other time critical applications. Wiring within your home or office, software in use or equipment at your site can be the cause packet loss, latency and drops. The problem can also be your Internet Service Provider (ISP). Intermittent problems can be frustrating to solve as issues can be brief and difficult to diagnose at the precise moment of trouble. If you are convinced that it is your ISP and have gotten them involved, they may never be on site while you are experiencing intermittent packet loss or outages. ISP technicians can be aggravating when they tell you there is nothing they can do since the circuit is working fine now. Use the HostMyCalls IP Packet Loss and Delay Test Tool to Find the Problem The HostMyCalls IP Packet Loss and Delay Test Tool (HMC Test Tool) was specifically designed to help VoIP providers find and eliminate the source of Internet packet loss, latency and outages causing problems with Hosted PBX and Hosted VoIP solutions. You do not need to be a service provider to use the tool and take advantage of the results. It is free to use and will take less than a minute of your time to start monitoring on any public IP address of your choosing. The HMC Test Tool enumerates and continuously pings each router between our operations center and your IP address. It keeps track of latency and packet loss within the network and specific to each router or hop along the way. If present, you can locate specific periods of packet loss and latency. From the reports, you will be able to determine whether the problem is happening only at your location or within the network of the ISP. If the ISP has a congested router causing latency or packet loss, you will know which router it is. This gives you power and knowledge for your next conversation with them. The HMC Test Tool is better than other tools found at dslreports.com and other websites. Although useful, these tools will only monitor your IP address for short periods of time. The HMC Test Tool will monitor your IP address for up to 7 days. This extended monitoring time helps catch intermittent problems with the Internet connection. In addition, the HMC Test Tool can monitor many IP addresses at one time eliminating the need for scheduling required by other tools. Whether you are: 1) having trouble with your Internet applications, 2) about to deploy new Internet applications or 3) want to see if your ISP, wiring and equipment are delivering a quality Internet connection, spend less than a minute to follow the link below and start a report. You are invited to use the HostMyCalls IP Packet Loss and Delay Test Tool for free. It is the same tool VoIP Providers use to find Internet problems. Once started, you will receive an e-mail explaining how to check the progress of your report. Use the Auto Refresh and get instants results while watching the latest data from your IP Address. You are also invited to check out our Hosted PBX ? Hosted VoIP business communications service.
Three Mistakes of Understanding VoIP business and development-VoIP, telecommunications, telephone networks – Communications Industry
TDM-based technology from the telephone switch to packet voice technology as the core technology of the telephone, telephone technology transition direction is determined. In many packet voice technology, VoIP is the only possible direction of development is the mainstream technology for future telephone use, VoIP phone networks in the future status has been established. Telecommunications regulators and telecommunications research sector, telecom operators, telecom equipment manufacturers for the VoIP technology and the current status quo is clear, also gave a high concern and high priority, in fact, has been adopted to varying degrees. Especially in the last two years, various forms of international VoIP services continue to emerge, especially in enterprises to adopt VoIP technology, heating, led the people of the VoIP technology and applications of attention once again. 3 Big Misunderstanding However, the Ministry of Information Industry Jiang Lintao Chief Engineer Telecommunications Research Institute recently in the “IP voice network in China Conference & Exhibition” to do the opening speech that the current understanding of the industry on VoIP there are 3 major errors. One misunderstanding: VoIP Simple VoIP technologies and concepts simple and easy but not its current form and function to provide the business is simple, just a simple point to point call, only phone numbers and IP address mapping database and user terminals an IP phone software can be realized. VoIP is really simple, and its implication of the energy is great, but for various reasons were artificially buried. Misunderstandings 2: VoIP Cheap VoIP services are cheap, but not because of cheap VoIP equipment and transmission costs low, but because of lower operating costs later. In the telephone service network, the main equipment of the overhead costs have not, nor is the cost of transmission costs, but the cost of operation and maintenance is the cost of operation and maintenance personnel. In fact, TDM business equipment costs and transmission costs almost the same now with VoIP, or even lower. Misunderstandings 3: VoIP business needs is not clear VoIP’s real advantage is that it is a telephone service network development, technology direction, to facilitate business operation and maintenance system synthesis and integration, can generate a large number of telecommunications service network. VoIP for the enterprise cost control, efficiency and business process optimization to provide both traditional communication technologies can not match advantage, once the true scale of commercial carriers, their business needs and business models will be clear and clear. Towards the future development of View from the business, VoIP has had poor quality, cheap, local use of VoIP has been developed to scale the network, the leading operator participation, consumer awareness, and identified as the next generation of alternative network core technology and promising business, but how VoIP should generate profits? Read from the business model and strategy, based on different networks and technologies to adopt the business model and development strategy is totally different, but after a period of development, each has formed relatively unique pattern of development. So what will happen to the future of VoIP technology? VoIP is a technology, it is the voice transmission in IP online; current telecommunications business is moving 100% IP-based direction, it is inevitable that VoIP technology trends and directions. Jiang Lintao that VoIP can have three applications, the IMS system for the transmission of sound; for point to point or multi-point voice communication between; used to build a new telephone system to replace the traditional phone. IMS system in the future, audio and video business is one of the main business, and in audio and video business, voice transmission is used in VoIP technology. But for the future of audio and video services, VoIP technology needs, there are many technical breakthroughs, such as: audio and video synchronization, audio coding technology. So, technically speaking, for there are a lot of work to do VoIP. cnc-machiningparts.com offers high quality suppliers and high quality products, such as China Sheet Metal Parts , CNC Machining Parts Machining Parts for domestic and oversee buyer. To know more information, please visits http://www.cnc-machiningparts.com/
Saving Money with VOIP Phone Systems Telecommunications
There have been numerous advancements in telecommunications over the last few decades, the most significant being the VOIP phone systems that have helped businesses cut costs whilst maintaining a simple communication system. The VOIP (Voice over Internet Protocol) phone systems use a network instead of landlines for telecommunication. This means that businesses can use their phones over an existing network instead of using standard telephone lines, which only adds to the expense of the business. VOIP has been developed into an affordable method of communication that has helped many businesses communicate without generating higher expenses. Many businesses use VOIP phone systems because it is easy to manage and saves money.Real Time TechnologyVOIP phone systems technology has been developed so people can talk to each other in real-time. Many precursors to this technology were delayed as it was still unknown how to transmit a voice over a LAN (Local Area Network) with efficiency. Since then, the technology has been developed to the point where two people can talk over the network as if they were using a traditional landline. This will free up the cost of maintaining a landline and will eliminate the need to install phone lines throughout the building. It only requires that a LAN be established and it can be used for people within the building to communicate with each other without an excess of wires being used. This makes telecommunications simpler and easier to maintain.Streamlines CommunicationIf there are already phone lines installed throughout the building, these can be used in the event of a network failure. However, using a network to communicate is a reliable method for departments to communicate over the phone as well as to transfer information. This method of communication has helped many businesses save a lot of money on their telecommunication bills because they are consolidating their communication methods into a single medium, which is the business’s network system. Costs SavingsIn addition VOIP phone systems also help businesses operate more efficiently, which is important to any growing business that wishes to remain successful. As a business grows, the telecommunication expense will also grow. This is why it is important to cut back needless expenses by consolidating communication systems. The technology behind VOIP phone systems has been developed so that it has become an inexpensive and reliable way for departments within a business to communicate with each other and even with the outside. VOIP phone systems can easily be managed through a web browser, making it easy for system administrators to monitor calls that are being made and to properly maintain the system.Facilitates business growthAlso many businesses are switching to the VOIP phone systems technology because it is a more practical method of communication that is making the use of phone lines obsolete. It has helped many businesses facilitate growth because it has cut back on expenses, money that can then be used in other aspects of the business. Businesses that are growing need to do everything they can to remain efficient, otherwise they will be spending countless dollars on expenses that can be eliminated. Using VOIP phone systems has helped many businesses remain on the cutting edge of technology and it has helped them save thousands of dollars in telecommunication expenses. Businesses who have not made the transition from the traditional phone line to VOIP should consider doing so right away. For more information on VOIP phone systems and technology please visit http://www.voipelements.com.au/ today. You can read more of the author’s articles on the subject at voip phone systems,please visit http://www.voipelements.com.au.
New opportunities to save money with VoIP telephony in Italy
TELEPHONE TRAFFIC ONFIXED NETWORK With our solutions you will save on calls regional, national, international and calls to mobile phones. Custom lists are proposed based on the profile of customer traffic, the more effective service to drastically reduce spending machine. INTERNET SERVICES Are you afraid of losing the network? Qcom offers a full range of professional solutions for web hosting, housing, housing virtual, electronic mail, certified mail (PEC), registering and maintaining domains, web sites creation, indexing and ranking in search engines. CONNECTIVITY ‘BROADBAND To connect to the corporate network adInternet Qcom offers different solutions ranging from simple connection to General Telephone Network and ISDN, broadband solutions to symmetric and asymmetric (HDSL and ADSL), with bandwidth commensurate with the needs of the traffic volume and levels safety and quality desired by the customer. IP SOLUTIONS Qcom VoIP is an alternative to PBXs (private branch exchanges) traditional, designed to reproduce all the features found in current telephone systems. Qcom VoIP Voice over IP is also a toolkit that allows interactions between the PBX features and IP networks (LAN and WAN). SAFETY Secure Box is the all-inclusive solution for fully managed information security, provides supply, maintenance and operation of equipment installed at the customer site, provides services such as Firewall, IPS, Antivirus and VPN, the solution continuously monitors and generates reports service. QCOM is aimed primarily at business customers (professionals, firms, institutions) who want to reduce telecom costs, improve Internet communications, have products and services tailored and high quality. Each client is the subject of a study free customized that allows you to evaluate each proposed solution. The portfolio ranges from traditional service offering savings of VoIP phone solutions, the services of broadband connectivity to DSL and Wireless services to all the web’s most advanced. Resource: www.qcom.it
Nettalk Duo – The Newest VOIP Device Contender
Nettalk, the well known name in the VOIP arena, has just introduced a new contender within the portable communications marketplace. Their new product is called the DUO and boasts an exclusive feature that could very well elevate them beyond the reach of other competitors within the portable VOIP community. Like other VOIP devices, the DUO offers free unlimited calling within the United States and Canada but, unlike others, the DUO is able to operate with or without a computer. This independent functionality frees the user from needing to rely on their computer for reliable phone access. As well, it eliminates the need for having a computer constantly running in order to maintain a live phone connection. It is no secret that VOIP technology has proven itself as a viable and reliable form of telephone access- as is seen by the ever increasing demand for services and products like Vonage, Magic Jack and Ooma. The release of the Nettalk DUO, along with these other VOIP alternatives, bring affordability to communications. In addition, they do so without the need for sacrificing all the convenient functions which traditional telephone providers offer as all the popular phone features are incorporated, for free, into VOIP phone access. Basically, this convenient technology is enabling people to receive the same phone service that is received from landlines for approximately the price that an individual pays for one monthly phone bill. It is evident that the economy will take some time to rebound and being able to cut costs where possible is a necessity. With VOIP technology, one is able to literally abandon their overly priced traditional phone service provider for an extremely affordable alternative that does not even require a sacrifice. As well, the Nettalk DUO, like Vonage, is a SIP device which means that it is also fully compatible with Faxing, dial-up VPN/ISPs and Satellite providers. This feature, which many of the portable voip devices lack, ensure future scalability and durability. Of course, all of these benefits are joined with the ability to accompany one on travels as portable VOIP devices provide phone service wherever one is able to access a broadband connection. If one is looking to cut costs or expand their communication capabilities then exploring portable VOIP device alternatives may be a worthwhile pursuit. If you are contemplating a switch to VOIP then the Nettalk DUO should be a definite consideration. With its many features and extreme affordability you can be guaranteed a lifelong communications companion. http://www.NetTalkDuoVoip.com
Report on VoIP
1.0 Introduction on VoIP: VoIP is a method to build applications utilizing software and devices. It is just like that network, which carries it, and hence it is not an application. In a VoIP there can be special VoIP server hardware like the analog telephone adapter (ATA), or there can be programmable services that work like a PBX. According to this all the VoIP components must work for the protocol conversation that make the voice, human telephone conversations happen. This means all the VoIP components should follow the same protocol to make that happen. VoIP is a protocol used to transmit voice over Internet and other packet-switched internet networks. Other names frequently encountered and have the same meaning like the VoIP are IP telephony and Internet telephony, other names like voice over broadband, broadband telephony and broadband phone are given when the network being used is a broadband internet network. VoIP systems interface with the PSTN for allowing of transparent telecommunication worlwide. There are benefits of VoIP like reducing infrastructure and communication costs as by routing calls on the existing internet networks and avoiding setting up of duplicate networks. Telephony speech signals like digital audio are passed by VoIP systems which are typically cheap in data rates by means of the techniques like communication and data compression. They are packetized into small segments of tens of milliseconds speech and are encapsulated in a packet to transmit it over IP. Since the first computer networks were developed VoIP has been a area of interest. In 1973 the voice was being transmitted using the internet. In the early 1980s this technology was provided to end users for sending voice conversations on the internet. Then in 1996 VocalTel Internet Phone software which was shrink-wrapped provided VoIP with some additional features like voicemail and caller ID. But this software did not offer gateway to PSTN, hence it was only possible to speak to a user who had VocalTel internet phone. Then the development of first soft switch began, these were developed to replace hardware telephone switches and to serve as gateway between different telephone networks. 2.0 Function of VoIP: The facilities provided by VoIP would have become more difficult for implementation and can be expensive by using PSTN. VoIP has the ability to transmit multiple telephone calls using the same internet connection. The services like conferencing, call forwarding, automatic redialling and caller-ID provided by telecom companies would be gained for zero or near zero costs. The calls will be more secure using standardized protocols. Internet connection is needed to connect to a VoIP provider, hence it is location independent. Using VoIP integration with other services that are available on the Internet, which include video conversation, data file or message exchange in parallel to the conversation, audio conferencing, managing address book. Advanced features like computer screen popup, call routing and IVR implementations are much easier and cheaper to integrate and implement. 3.0 Implementation of VoIP: Transmission of analog signal using switched circuit is the basis of today’s PSTN. In contrast to this VoIP networks transmit digitized voice using packet-based systems. As we can see VoIP is providing telephony services at compelling prices. [Syngress, Jason Sinclair, 2002]. Toll Bypass: In contrast to the internet, PSTN provide voice services with heavy charges or tolls. Toll bypass is one such technique to avoid PSTN charges by using data networks, such like the Internet for carrying voice. 3.1 VoFR It is a use of frame relay system to transmit IP packets having digitized voice data. Hence it is know as voice over frame relay (VoFR). [Sharma, D., 2002] 3.2 VoATM It is a use of ATM network to transmit digitalized voice packets. Instead of carrying different length frames an ATM system carries small and fixed length frames known as cells. Hence the name Voice over Asynchronous Transfer Mode (VoATM). 4.0 Security: VoIP is totally based on network protocols, and it needs to be evaluated from the same perspective when considering the security for a VoIP system [Jim Van Meggelen, Leif Madsen and Jared Smith, 2007]. But this is not to say as to traditional telecom security should be not kept in mind but here we need to give some attention towards the underlying network. 4.1 Basic network security Single of the majority effective thing that can be complete is to safe access to the voice network. The employ of firewalls and VLANs are example of how this could be achieve. By evade, the voice network be made-up to be reachable only to persons or things that are in need. 4.2 Segregating voice and data traffic If there is a requirement to have voice and data on the similar network, there may be a few values in maintaining them separately. 4.3 DMZ Insertion your VoIP network in a DMZ can give an extra layer of security for your LAN, while unmoving allows connectivity for applicable applications. In spite of whether you set up within a DMZ, any irregular traffic coming out of the network should be suspected. 4.4 Server hardening Hardening your Asterisk server is serious. Not just are at hand are performances benefits to work on this, the removal of something not necessary will decrease the possibility that an broken vulnerability in the operating method can be utilized to gain admission and start an attack on additional parts of your network. Making Asterisk as non-root is a vital part of system hardening. 4.5 Encryption Even while Asterisk do not yet fully maintain SRTP, it is still likely to encrypt VoIP transfer. For example, in between sites a VPN might be working. 4.6 Physical security Physical security must not be unnoticed. All terminate equipments (like switches, routers, and the PBX) should be safe in a situation that can just be accessed by approved persons. 5.0 The Software for VoIP Application: Asterisk is utilized as an open basis software PBX. At first it was developed in 1999 to meet a telecommunication requires. What meant to be an experiment had progressed into a worldwide phenomenon that changes the face of telecommunication knowledge now and the future. Today, Asterisk is the de facto criterion for voice switching and PBX function in open source space [Jim Van Meggelen, 2007]. Approximately there are 2 million Asterisk servers worldwide and rising. Asterisk gives you real-time connectivity on together PSTN and VoIP networks linking employees working from home to the office PBX over broadband connections. Never in the record of telecommunications has a system so well-matched to the requirements if industry been obtainable, at any price. Asterisk is a facilitate technology and, as by means of Linux, it will turn into increasingly rare to locate an enterprise with the intention of is not running some edition of Asterisk, in some ability, wherever in the network, solve a problem as just Asterisk can. [Jim Van Meggelen, 2007] 5.1 Benefits of Asterisk Application Cheap call rates. Administer your telephone arrangement. Fast and easy growth. Situation Integration with business system or existing PBX and VOIP for major savings. No matter of proprietary system Guarded and lithe dial plan. Cheap cost contact to advanced phone Features 5.2 Benefits for Customer Lower use cost free customer from sole vendor dependency. Provide freedom in system implementation. Eliminate upgrade-path costs. [Phil Lam, 2008] No per-seat license costs. Provides substitute avenues for bear/big fixes. Charge saving on calls. Asterisk was produced and developed by Digium, Inc. It is a organization based in Huntsville, Alabama who specializes in the development of PBX hardware and open-source telephony software, most notably Asterisk [Digium Inc, 2008]. Digium was founded by Mark Spencer as Linux Support Services in 1999. Contract support and development for Linux were provided by the organization. As Mark did not have the resource to purchase a PBX for his own company, he decided to start writing one from scratch. In 2001, the U.S. economy was going through a period of recession, and as a result demands for the services provided by the company dried up. Mark then took the step to shift the company’s focus on its fledgling open-source PBX product, Asterisk. The company was given a new name “Digium” in 2002. 6.0 Asterisk’s Requirements: The source code of asterisk can be downloaded as it is accessable like any other open source softwares, and compile the code by yourself. Asterisk get compiled easily on Linux but it will not even run on FreeBDS, Solaris and Mac OS X. [Ted Wallingford, 2005]. Used in combination with Digul’s telephony interface cards, Asterisk offers a strategic, highly cost-effective approach to voice and data transport over IP, TDM, switched and Ethernet architectures. Digium’s offerings include VoIP, conferencing, voicemail, legacy PBX, IVR, auto attendant, media servers and gateways, and application servers and gateways. Many engineers had contributed for the code of asterisk programmed by mark spencer of digium. The engineers were from around the globe. Presently boasting over two million users, wide range of TDM protocols are supported by Asterisk for the handling and transmission of voice over traditional telephony [...]
IPQoS continues to change the VoIP game – Case Study
IsaDalí Hotels is one of North America’s largest hospitality companies with operations in both Canada and the United States. They offer individual consumers and business customers a broad array of hospitality products and services as well as various accommodation alternatives and price ranges through their premier portfolio of world-renowned brands. IsaDalí’s Canadian operation encompasses 510 rooms over 6 different properties. A priority at IsaDalí hotels is ensuring that guests are comfortable enough in their hotels that they never have to leave. Their company promise is comprised of offering exceptional service “end-to-end”: from no-hassle reservations, impeccable housekeeping, quality restaurants, and impeccable in-room and on-premise entertainment. In 2009, the hotels and associated restaurants in their Southern Ontario properties began to roll-out a two-phased program of switching off of traditional phone lines. By mid-2010, two hotels, six restaurants, and the valet booth’s communications were running on a carrier-provided MPLS network that was one year into a three-year contract. The system was slow and was not living up to the promises made by the carrier. Phase Two of the upgrade was about to commence, involving the network upgrade of another hotel and two additional restaurants in the immediate area. IsaDalí management were concerned that the existing MPLS network was not providing enough bandwidth to support the business currently and feared that the expansion would only worsen the existing performance. They began looking at alternatives. “Let’s face it,” said hotel GM Sonia Quinn, “bandwidth is everything, these days. A single smart phone [application] takes up more bandwidth than an entire laptop did five years ago when we first installed our broadband links.” Not only were the reservation system’s speeds slower than the industry benchmark, the slower speeds meant that communicating with head-office through their VPN was also difficult and time-consuming. Their “no-hassle reservations” guarantee was being adversely affected by a crippling latency in their MPLS network. In fact, the slow speed of the MPLS network was negatively affecting all aspects of the IsaDalí business – across the different properties. They recognized the need for a solution that would either replace their existing MPLS (a solution that would cost IsaDalí dearly as there were penalties to get out of the carrier contract) or a solution that could leverage their existing infrastructure, and provide the bandwidth they required. Spend money to increase services, but kill the margin?Understandably, IsaDalí’s first step was to approach the carrier with whom they had their existing MPLS network in order to find a solution through them. “Expansion was on the brain, and I think [The Carrier] lost sight of our requirements,” Recalls Ms. Quinn. The Carrier suggested running expensive fibre lines to all of the locations in order to rectify any up-time issues, but also to speed up the existing, under-performing MPLS network. The hotel was spending $4300CAD (net) monthly on their complicated MPLS network for the area, and needed an Internet and Data solution that wouldn’t add too much to their fixed costs as margins were already tightening in the market — the original reason for the switch to Voice over IP. The hotel’s team scoped out their requirements as a minimum 10Mbps/site download speed. A $1500/month price-tag for the fibre connections (with additional construction costs on top), it turned out to be one of the most expensive upgrade projects the company had considered. “[The Carrier's Solution] just wasn’t going to fly internally,” Ms Quinn comments in the aftermath, “Sure, we needed to enhance our network, but we’re also a business that has to ensure profit margins are considered, and laying fibre to these locations was going to cost us a small fortune.” Autonomous Network AggregationIn the end, IsaDalí chose to open up the solution-hunting to other suppliers. Our partner brought TELoIP to the table with our Ana System. Ana™ is a patent-pending solution that aggregates bandwidths of multiple communication links to deliver greater speed and reliability to the end-user. The Ana system would be used to aggregate DSL and Cable links into each of the sites, increasing the bandwidth and reliability of all on-site connections, and providing QoS for voice for IsaDalí. The proposed TELoIP solution for Phase Two would alleviate the burden of slow network performance by running a managed MPLS and an Internet WAN solution in parallel. The combined systems were proposed to increase the overall speed of the IsaDalí Groupnetwork, while providing a redundant data path for the site that could take advantage of TELoIP’s Ana system. TELoIP delivers IP ConfidenceTELoIP was able to deliver, through a simple combination of inexpensive network links, a solution that met IsaDalí’s bandwidth requirements and also increased the speed and reliability of their existing MPLS network. The proposed solution would satisfy all the needs of IsaDalí’s flagship hotel, and offered a savings of over $500/month to each of the three new locations. With the added savings, the hotel chain upgraded their MPLS network by placing TELoIP hardware at existing points in their network. Download this Case Study at http://teloip.com/Doc/TELoIP_Wins_Again_Over_MPLS.pdf TELoIP creates and sells telecommunications technology-as-a-service through our Partner Programs. Our solutions are based on a breakthrough next-generation aggregation technology that improves network connectivity and application performance for all types of businesses. Come visit http://www.teloip.com and learn more about the “Autonomous Network Aggregation” system ? Ana?.



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