VoIP systems offer significant improvements over the traditional modes of communication by providing an economic and superior mode of communication that is Voice on the Internet protocol. For users of Linux and other open source platforms, it sometimes becomes relatively hard to identify the best VoIP client to use since the options that are available are legion.

Thus, in the course of developing the open-source model, there are numerous VoIP clients that are identified, each being tailored to accommodate the needs and preferences of users. Be it simple and plain andJave applications or full-featured complex and sophisticated application, the Linux operating system based application presents a vast range for all categories of users.

What are VoIP Clients?

VoIP Clients refer to software platforms that enable users to make voice as well as video calls via the availability of the internet. These clients are generally compatible with multiple available VoIP protocols including SIP (Session Initiation Protocol) and H. 323 besides employing codecs for encrypting and decrypting audio-video data to facilitate message passing through internet. VoIP clients may be run on the PC, portable or stationary devices, or special VoIP gear through which the caller can dial VoIP user or conventional phone number.

It is extremely important to carefully select the VOIP clients for Linux because each client has a different functionality and comes with different features to meet different users requirements.

VoIP or also known as IP telephony can be defined as the technology that allows making phone calls through the internet instead of through conventional telephone lines and it is gaining popularity in the present times due to cheaper rates than the ordinary telephonic services. As for Linux users, they will be glad to find out that there are numerous wonderful VoIP clients that do not differ from the best ones in functionality and opportunities presented. VoIP clients for Linux listed below are some of the best options that are available to Linux user across the globe.

Linphone

Linphone is a free software VoIP client that is compatible with SIP, RTP and ZRTP protocols so it supports a great deal of codecs. It has a nice-looking and clear appearance which facilitates calls in addition to video calls, messaging, and file-sharing options. For the Linux based machine, Linphone can be installed via the package manager for different distributions of Linux.

Jitsi

Jitsi can be defined as a highly flexible and secure VoIP client with audio and video calling options, as well as included features, such as screen sharing and real-time text chats. It adopts the Opus and VP8 techniques that are provided freely and offer efficient and high plains audiovisual contact. Jitsi is open source and can be run on Linux, Windows, Mac OS and other operating systems, as well as integrated directly into web browsers through the use of Jitsi Meet.

Ekiga

It is thus clear that Ekiga is a VoIP client with significant functionality and capabilities that include the support of both SIP and H. It provides clear graphics with options of video calls, it has a call recording option, and the option to forward calls. The program also offers more detailed functionality like call merging, address book support, and call encryption with SRTP and ZRTP.

Twinkle

Twinkle is a VoIP client of very low overhead, highly portable and uses the SIP protocol. Another advantage is that it has a plain and accessible design, and the user is able to have full control for calls, contacts and settings. Thus, Twinkle can be defined as the most suitable solution for users who are interested in ‘Naked’ VoIP solution.

Zoiper

Program Zoiper v. 3 is a great VoIP client with multi codecs and protocols’ support: SIP, H. 323, IAX2. For instance, it is very interactive with system requirements for Video calls,Call Recording, Voicemail among others. The above functions also come with other features like call forwarding, call parking and call transfer as part of the enhancement of the Zoiper.

SFLPhone

SFLPhone (Société Française de Logiciel Libre Phone) is an open-source. gnu phon SIP-protocol VoIP client. The application has a compact design and an intuitive interface and includes voice and video calls as well as an option to send text messages. SFLPhone is widely used in Linux-operating system users because of its usage of open source software and has serious attention to users’ privacy.

Ring

Ring is a free and open source VoIP client originally called SFLVideo, that is mainly based in privacies. This adds the features of voice and video calling as well as regular text-based messaging. Ring utilizes the OpenDHT peer-topeer hash table for communication, making certain that the calls are not being directed through the Ring central servers, thereby minimizing the chance of eavesdropping and infiltration of call data.

Conclusion:

Thanks to the development of the Linux operating system, there is quite a large variety of high-quality VoIP client programs that function in accordance to the user’s needs. When it comes to VoIP clients, there are plenty of choices and depending on what kind of client, with which set of features and how focused on simplicity / security / etc. you need, there is one for you. Done, thus you are able to locate an environment that organically complement your flow of communicating and in the process make voice and video calls over the internet effectively and at an affordable cost.

Best VOIP Clients for Linux - FAQs

Is there any special requirement of this internet connection or any special equipment required to use a VoIP client?

Well, as mentioned earlier, you do not require any extra hardware or internet connectivity to use a VoIP client. As long as you have a computer or mobile device with a microphone and speakers (or a headphone), or any other stable internet connection, you are ready to go. However, for the best call quality, it is highly advisable to have an ISP connection with an advanced broadband speed.

Are VoIP calls secure and private?

VoIP communications in general are vulnerable to security threats that aim to intercept, alter or dec1y Calls security and privacy largely depend on the protocols and the encryption employed by the VoIP client and the service provider. There is some VoIP client, like Ring, that are specially developed with an eye on privacy and security, calling their members by P2P and implementing end-to-end encryption. Nevertheless, it is advisable to use a secure VoIP client and to avail the services of a professional service provider so that the calls cannot be easily tapped.

Can I use a VoIP client to make calls to regular phone numbers?

Indeed, most VoIP clients and service providers enable the customer to make calls not only to other VoIP users, but also to ordinary phone lines (both fixed and mobile). This is generally done by acquiring a calling plan or credits from the service provider to make calls to normal phone lines and the cost per call is comparatively cheaper than most telecommunication services.

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