Whether the business is considering a hosted, virtual approach or an in-house telephone system, both the VoIP and the PBX brings substantial benefits to an organisation. However, choosing the best involves a thorough understanding of both systems.
The hosted VoIP is an Internet-based business phone system and it provides coverage over the business technological equipment, by managing all the activities the telephone system needs to operate. The system operates through the business network, by using a reduced amount of bandwidth to conduct all activities. In return, the company benefits from large financial practicalities as a result of expanding, along with reduced costs and business focus. The IP equipment consists of routers, MPLS switches and Ethernet switches; once the telephone is plugged in, all signalling, calls and services are managed by the IP server, which is located on the provider's premises. Based on the use of the hosted voice telephony, there are monthly charges and bonus packages which save even more expenses.
The PBX business phone system is defined as a secure telephone network within an organisation and its main capacity is linking internal business telephones into one system, while also enabling the connection with Public Switched Telephone Network. The system involves a large number of outside lines which enable calls between different businesses. Some of the disadvantages of the PBX phone systems are the extra expenses involved and lack of advanced services such as call queuing, call recording and IVR Menu Systems. The PBX phone system is a very basic and high-priced business telephony service, which does not provide the sophisticated features of a hosted business VoIP. However, there have been improvements to the PBX technology, such as a hosted version which is an improved form of the office-based business telephone system.
The most used form of PBX business phone system is the IP-PBX. This equipment for this system is resided on the user's premises, rather than at the provider's location like the hosted VoIP. The functionality is based on the regular PBX phone system; the difference is that the IP-PBX is a software-based system and uses LAN to transmit the signal from the IP to the PBX server. PSTN systems and SIP Trunk enable the connection with exterior businesses. IP-PBX providers usually manage all calls and enable all a wide range of features, such as call switching, routing and queuing or unified communication at lower costs than the traditional PBX.
To help decide which business telephone system would best benefit the company, criterions such as long-term performance, costs and disadvantages need to be considered. An IP-PBX phone system requires hardware and a server housing the necessary elements which enable the connection to the providers and IP telephones. The hosted VoIP however requires only the telephone equipment, as the server is located on the supplier's premises; this is why sometimes, a router is considered to maximise the practicality. As a result, the installation and maintenance costs for the hosted VoIP system are lower because of the lack of equipment. Also, low expenses are involved in monthly costs and facilities used, as new features and enhanced software versions are provided by the supplier. Another advantage is the possibility of adding further lines.
On the other hand, as the IP-PBX system requires a lot of hardware equipment, there are maintenance and installation costs involved. A main benefit is the low costs involved for using the services and there is also the possibility of applying SIP Trunking with the VoIP provider for lower calling costs. The costs involved for server and the software applications only can add up to £2-£3k, which means that as the IP-PBX is concerned, the hardware costs will be considerably over-priced. The price and long-term expenses should not outdo the essential features. The purpose of a business telephone system should concern the company requirements and improve its profitability. An important consideration is that the maintenance and servicing for the hosted VoIP will be ensured by the supplier, whereas the IP-PBX requires independent services and will add to extra expenses in the long-run.
The services a business telephone system provides need to be essential and tailored for each company. If the business cannot benefit or increase its productivity from the system, an alternative should be considered. The benefits of the hosted VoIP include a broad range of possibilities such as new and improved features which can be provided by the supplier, as well as the implementation; virtual numbers can be easily selected and revoked; the IP phone can be used from any place via an active broadband connection; remote users can benefit from best quality services, as providers use NAT software to enabled simple and safe feature implementation. The most important ability of the system is that in case on an Internet cut, all business operations will still be functional as all the incoming information is recorded, despite the system being network-based.
The disadvantages of the VoIP business telephone systems were considered more severe in the past, when the technology was not as explored as today. The clarity of the conversation depends on the Internet connectivity; however the Internet providers offer more and more performance enhancing packages. If the Internet is disconnected so will the phone services, but this is also one of the benefits of the VoIP system, as it redirects all incoming calls to voicemail. The customisation with various features may be slow or not possible with some providers. Although there are some business telephone systems suppliers who offer special packages to fit a company's needs.
With regards to the IP-PBX telephone system, some of the advantages include overall flexibility, which allows the users to adjust the features to their preferences. Open source features are available for free, as they are developed by the open source community and reduced costs over a long period of time after the system has been purchased. The disadvantages of IP-PBX systems include the need for extra-management, as the system is more complex than VoIP which is managed by the supplier. Also expanding the system can increase density, extra maintenance and repair costs as the system requires hardware and software on the premise of the business and finally, if there is an overload of incoming calls, the PBX system can decline gradually.
The information required to assist the decision of moving to a new improved business technology cannot be fit into one article. The business telephone systems are highly complex and finding the service to perfectly suit the business is hard, especially because the most important element of a business is effective communication and the telephone systems enable it. If the services of hosted IP or IP-PBX are too much of a radical change for the business, a recommendation would be to slowly start experiencing the advantages of each system to help facilitate a final decision.
Chris Bourne - Writes exclusively for the business communications industry. Chris often provides online reviews, news stories and articles on subjects such as unified communications, business broadband and more.
By C. Bourne
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