What is VoIP (Voice Over Internet Protocol)?

What is VoIP (Voice Over Internet Protocol)?
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Traditionally, legacy phone systems carry voice signals using analog phone lines so it requires the setup of circuit wiring to make and receive calls. Under this circumstance, a piece of specialized hardware equipment called Private Branch Exchange (PBX) is used to connect internal phone extensions to the public telephone network.
Rather than sending data packets over a traditional circuit-switched network, VoIP, the abbreviation for Voice over Internet Protocol, sometimes also referred to as IP Telephony PBX PBA Doha Qatar, is a technology that converts voice into digital signals that can be transmitted over internet digital data packets via your local area network/WAN/other infrastructure to enable phone calls. VoIP uses RTP (real-time protocol) to ensure that these packets get delivered timely. You can use either an ethernet cable or a high-speed WiFi connection for VoIP.
Here is a short video to help you understand what VoIP is in one minute.
How Does VoIP Work?
As mentioned above, VoIP basically works by converting analog telephone signals into digital signals to facilitate telephony over the Internet. Now letís dive a little deeper into detail into the process.
SIP Protocol and SIP Trunking
Voice over IP works by using protocol technologies and SIP is one protocol that enables VoIP. Session Initiation Protocol (SIP) is a communication protocol for VoIP calls and other text and multimedia sessions, such as instant messaging and video. SIP trunking, based on the SIP protocol, is basically a service established virtually over your internet connections and provided by Internet Telephony Service Providers (ITSP), eliminating the physical connection to a phone company.
Equipment You May Need in order to use VoIP
VoIP phone systems (PBX)
A VoIP PBX (Private Branch Exchange) is a business telephone system that facilitates phone calls over the companyís LAN or WAN data network rather than through the circuit-switched networks.
VoIP PBX is available in two deployment options ñ on-premises and cloud-based. With an on-premises voice solution, the hardware is installed and runs on-site at your office or data center while a cloud PBX system is delivered entirely over the Internet and managed completely off-site by a service provider.
VOIP business phone system Doha Qatar or IP phones
VOIP business phone system Doha Qatar, or IP phones, are the physical office phones that you can use with a VoIP phone system. Visually, they do not differ much from the traditional, stationary phones you find at your home or on your work desk. Because of this, itís quite easy for employees to adjust to newer VOIP business phone system Doha Qatar. The one fundamental difference is that they are internet-enabled, whether via WiFi or Ethernet. They are assigned IP addresses to facilitate calls over your network.
Mobile phones, computers, network-ready devices
In addition to IP phones, you can also access VoIP phone systems using your own mobile device, computer, and other network-ready devices with VoIP apps or softphone application installed. Today you can make and receive business phone calls anytime, anywhere using your own Internet-connected devices, without worrying about losing VoIP call quality. Employees are no longer tied to a desk phone and may use any device of their choice.
VoIP gateways
A VoIP gateway is a hardware device that converts traditional telephony traffic (analog or digital) into packets of data, allowing connections between legacy telephony infrastructure and IP-based communications, acting as a bridge between an IP network, the PSTN (Public Switched Telephone Network), and the cellular network.
VoIP is based on your existing internet connection.
What Are the Benefits of VoIP?
Modern businesses enjoy using VoIP phone service over traditional telephone lines because they can get a lot more value than just improving corporate communications. Below are a few of the many ways VoIP benefits businesses.
1. Cost Savings
VoIP is a budget-friendly way to set up a business communications system. VoIP services could be based on a direct IP connection to your phone service provider, simply on your existing internet connection, or a combination of both. Therefore, it cuts down the cost of internal calls in your organization to virtually none, greatly reduces the expenses of external and international business calls, saving a significant amount of investments on purchasing traditional phone lines, installation, and ongoing maintenance.
On-premises and cloud-based VoIP systems are both cost-effective but do have some differences in terms of the cost. Though you need to pay fully upfront for an op-premises system, it protects you from the risk of fee increases and means lower monthly cost after expenses are covered. As for the cloud-based hosted VoIP services, you usually go with an OpEx model with more affordable monthly or annual fees and low initial equipment cost.
If your voice and data solutions are currently separate, you can save money by combining the two under one provider. In addition to the cost savings, youíll also be able to consolidate both internet service and telephony support.
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2. Easy to Install
Comparing to traditional phone systems, the installation and configuration of VoIP systems could be super easy. Traditionally, with a landline system, office phones require physical lines to receive phone service. VoIP phone systems eliminate the need to install any physical phone lines. All you need to do is to connect IP phones to the corporate network via Ethernet lines.
Better yet, if you need your IT staff to prioritize more important and revenue-generating projects instead of managing the phone system, hosted phone services leave the work to the service provider and there is no need to worry about any network issues. It would be beneficial for small businesses and start-ups lacking in technical expertise or resources, too.
3. Clear Voice Quality
When Voice over IP was first introduced, its call quality was indeed unsatisfactory. Long gone are those days thanks to the advancement of broadband and Voice over Internet Protocol technology itself. The ìpoor call qualityî is probably the biggest misconception about VoIP now.
Rest assured as long as you have a fast and stable Internet connection. Most VoIP providers offer a vast number of different protocols and codecs to ensure HD sound quality. With a robust solution and proper implementation, the voice quality of VoIP can be as good or even better than the landline-based calls. You canít even tell the difference.
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5. Mobility & Geographical Flexibility
VoIP enables businesses to extend their communications system to remote offices and on-the-go workers over SIP-enabled devices. For remote workers, the office is wherever they make it as long as the Internet connection is available.
The deployment of a multi-site VoIP system can not only keep all dispersed branches connected seamlessly but also reduces the spiraling inter-office call costs. Softphones enable employees to make their office extensions mobile with a wide range of call handling features at hand. Additionally, cloud phone systems make it easy to connect geographically dispersed offices under one phone system and the IT admin can easily manage it from any location.
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5. Scalability
Scalability, as one of the most valuable characteristics for businesses, refers to the ability of a system to handle a growing amount of workload, normally by adding resources to the system, without affecting its overall performance or efficiency.
VoIP is a scalable solution that can grow with your business, especially the cloud-based VoIP service, which offers greater flexibility for businesses with staff growth or reduction. The increase and decrease of phone extensions can be made immediately and businesses only pay for what they need, without purchasing additional hardware equipment or new dedicated lines. It can all be done, practically in real-time. If you are a seasonal business with fluctuating communications needs or experiencing rapid growth, a hosted model can be a perfect fit for you.
6. Abundance of Features
VoIP services deliver a number of features that are either not supported by traditional telephone systems or only available for an additional fee. These features are more than ëextrasí. Many businesses have found it easy to use VoIP and became more competitive with the full suite of built-in features. Some features may help companies meet important safety and security needs, including the ability to connect with emergency services while using internet VoIP.

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