In recent years, Internet telephony has become one of the most popular and widely used Internet applications. Internet telephony, also known as VoIP telephony, where the Internet is used to regulate telephone traffic, is part of the organizational structure of some small and medium-sized enterprises. Indeed, companies need all the support they can get to increase their profits and reduce operating costs. One way to significantly reduce their telecommunications costs is to include telephone services over the Internet. Thanks to voice, facsimile and video calls in real time over the Internet, this specialized service is the preferred choice of business conglomerates with a global presence.
Since the 1980s, the telecommunications industry has been dominated by certain trends, which are slowly but surely manifested in this context. First, digital signal processing (DSP) technology has become cheaper and more accessible. The process of converting speech into real-time digital signals is now possible from any home or office computer.
Compression and multiplexing techniques have become faster and more economical. The bandwidth that could have supported a single voice call a few years ago is now capable of handling 5 to 10 calls. Another trend that can be mentioned in this context is the widespread use of global networks such as the Internet.
However, one factor that remains constant and is particularly important for net profit is the high cost of phone calls on PSTN networks. Thus, it makes sense for businesses and individual users to use the latest computer and networking technologies to reduce communications costs.
However, there are some obstacles to IP telephony, especially when it comes to “real time.” And one of them is having the right bandwidth; Unpredictable “micro-delays” can be the result of limited bandwidth under certain circumstances. Therefore, bandwidth must be guaranteed; and Internet telephony services that create the same need. The latest protocols, such as RTP and RSVP, are very helpful here. Business users need to make sure that all Internet service providers (ISPs) they subscribe to support these standards.
Over time, voice-based Internet telephony has grown, and some of the world’s largest telecommunications companies are already using it. Some obstacles, such as compatibility, are gradually being removed. Big names in the communications industry have joined this basket and are contributing to its future growth. This has led to a phenomenal growth in Internet telephony, with traditional providers now offering “advanced” services. Real-time fax machines, print servers, fax servers in corporate networks, voicemail – here are some of the specialized Internet telephony applications.