The overall performance of Voice over Internet Protocol is decided by the quality of your voice conversation. Apart from cost, one main reason that has encouraged businesses to deploy VoIP applications is better VoIP voice quality on calls. Better quality of audio communication can help businesses in many ways, which include their internal communication, customer support and showing professionalism. Thus, if you do not get high-quality voice communication, the very purpose for deploying VoIP may be defeated.
When you choose VoIP, you should remember to check these critical factors that will ensure high-quality audio from your VoIP application.
Sampling Rate
Measured in Hz (hertz), sampling rate is the number of times an application samples audio in a second. It is necessary to check this parameter as it has a great bearing on VoIP voice quality. In the narrow band, which is the minimum sampling rate, you sound will get sampled at 8 KHz, i.e. 8000 times per second. However, when you need good audio quality, the narrow band will not suffice. You need wide band that has a sampling rate of 16 kHz or above. With wideband, you get twice the quality of the narrow band, but this is not all. To get good quality audio sound, it’s necessary that you have CD quality, 44.1 kHz. When you need good quality audio, make sure it has a sampling rate of more than 40 kHz.
Bandwidth
Bandwidth can be described as the amount of data which can pass through the network in a specific time. In VoIP, audio is converted to digital data and transferred through the network. Thus, it is essential that while you choose VoIP, you have the required bandwidth. Many use Codec or compression/decompression component that is used to compress voice before sending it through the network. However, in VoIP, although some minimal bandwidth is required, it is not the most important component. A higher bandwidth will certainly contribute toward better VoIP voice quality. Video needs larger bandwidth than the normal one.
Standard Protocols
While using VoIP, you need to follow a lot of standard protocols. Some will deal with media and control protocols (like RTP/RTPC) while others with signaling protocols like SIP & H.323. While choosing IP telephony vendors, understand what protocol he is following. In general, most service providers follow industry standards. At the same time, there is no harm in understanding what you are getting. The industry standards help in multiple ways.
1. It helps your VoIP calls be universal in the sense that you can anyone in any country.
2. It helps you not worry about what OS or computer system you are using.
3. It helps you in mobility as you use any mobile platform such as Android , iOS, Windows CE, etc.
Following standards ensure there is proper handshake between your calls and the receiving end. This certainly ensure better voice quality. Different standards mean both sides have to interpret the incoming signals. This will lead to delay and may what is called jitter.
Quality of Service (QoS)
When your VoIP call is in progress, your voice signals traverse over the network in the form of data packets. If there is too much traffic in the network, it is obvious that your quality of services will be reduced, which you will not like. You cannot allow degradation of your calls. To solve this problem you need to have QoS in the network. This will ensure that audio packets get preference over other data packets. Thus, when you choose VoIP services, do not forget about QoS. High QoS guarantees high VoIP voice quality as the service provider will take pains to ensure quality.
Virtual Private Network
Finally, you can think of VPN. Virtual Private Network or VPN will get you guaranteed bandwidth that will increase your VoIP voice quality. You do not have to worry about jitter and call fails while you are on an important call.
Use these 5 points as important and critical factors for voice quality on your VoIP calls. For more details call us today.
About One Call Communications
One Call Communications is a leading provider of phone systems in North Carolina. We serve thousands of clients across Greenville, Rocky Mt., Goldsboro, Smithfield, & Wilson. We sell, install, and service business telephone equipment, voicemail and, voice and data network cabling. We install and service premium quality products from Toshiba Telecom. We serve both commercial and industrial clients.
Call us today for your networking and communication requirements.
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