Chamada de vídeo

Uma chamada de vídeo é um modo de videoconferência que envolve dois usuários que podem ver e ouvir um ao outro ao mesmo tempo. Durante uma chamada de vídeo, os usuários podem compartilhar arquivos e outros conteúdos de mídia, por exemplo, compartilhar a área de trabalho, trocar mensagens de texto e usar as ferramentas de colaboração fornecidas por sua solução de videoconferência.

Para fazer chamadas de vídeo, é necessário um software de videoconferência ou um módulo de hardware separado. Atualmente, as videochamadas são usadas em quase qualquer lugar: em salas de reuniões, mensagens instantâneas, caixas eletrônicos, soluções de telemedicina, sistemas de controle de acesso, etc.

A group video call allows people to connect and collaborate in real time. The experience depends on the features of the video conferencing platform, with each type of call tailored to meet specific needs. Here’s an overview of the main types of group video calls and how they work:

All-on-Screen Video Conference

In this setup, all participants can see and hear each other simultaneously. It’s ideal for team meetings, brainstorming sessions, or group projects that require active participation from everyone. This format ensures every voice is heard and ideas are freely exchanged.

Role-Based Video Conference

This format highlights specific speakers while others remain in a listening role. It’s a great choice for panel discussions, moderated debates, or webinars featuring multiple speakers. By focusing on designated presenters, it keeps conversations organized and on track.

Video Lecture

Participants can see and hear the speaker, but they can’t interact with each other. The speaker, however, has full visibility and audio access to the attendees. This setup is perfect for lectures, training sessions, and educational seminars, ensuring the focus stays on the presenter and the material being shared.

Live Streaming

Here, the speaker broadcasts content to the audience without seeing or hearing them in return. This format works best for large-scale events like product launches, company announcements, or public webinars, where the goal is to share information with many viewers rather than encourage interaction.

Voice-Activated Switching

In this format, the system automatically displays the video of the person currently speaking. This makes it easy to follow the conversation in informal discussions, team check-ins, or meetings where participants take turns speaking.

Existem dois tipos básicos de videochamadas: chamadas individuais e conferências em grupo. Os usuários podem realizar uma variedade de conferências em grupo, como:

• One-on-One Video Calls - video calls involve communication between two individuals;

• Conferência simétrica - os participantes da reunião veem e ouvem uns aos outros;

• Conferência baseada em função - os participantes só podem ver e ouvir vários palestrantes da conferência;

• Streaming - o orador não pode ver ou ouvir ninguém, enquanto todos podem ver e ouvir o orador;

• Voice-activated switching - speakers who start speaking become visible to other conference participants;

• Webinars are online seminars or workshops conducted via video calls, typically with one or more presenters sharing information or delivering presentations to a larger audience;

• Telehealth video calls involve remote healthcare consultations between patients and healthcare providers through video conferencing platforms;

• Customer Support Calls: Video calls are increasingly used for customer support services, allowing customers to connect with support representatives visually for troubleshooting, product demonstrations, technical assistance, and personalized assistance, enhancing the customer experience.

O software de chamada de vídeo pode ser corporativo ou pessoal. As soluções de videoconferência corporativa são projetadas para uso na rede corporativa. As soluções de videoconferência pessoal são para uso individual e são projetadas para se comunicar com amigos e familiares através da Internet.

TrueConf

TrueConf is a self-hosted and secure solution for team messaging and audio/video conferencing with up to 1 500 participants in one video conference. During video calls you can use multiple collaboration tools, such as remote desktop control, slideshow, screen and file sharing. You can record your audio and video conference for future playback. All the recordings are stored locally and available only for the participants. The solution is deployed on-premises or in a private cloud, providing full control of the data.

FaceTime (para Apple)

O FaceTime é o aplicativo padrão de chamadas de vídeo e áudio da Apple. Com este aplicativo, você pode configurar chamadas em grupo para até 32 participantes e até compartilhar links de chamadas como no Zoom, enquanto o recurso SharePlay permite compartilhar vídeos e capturas de tela durante suas chamadas.

Atualmente, o FaceTime não está disponível em alguns países e regiões, como Emirados Árabes Unidos e China continental.

Google Meet

Google Meet is Android’s version of FaceTime that also supports audio and HD video calls at 720p with up to 100 participants. The unique feature of Meet is that you can see the video of the person who called you before you accept the call.

Meet is only available for iOS and Android devices. In order to activate the application you need to link it to your phone number. This means you can use Google on only one device. The quality of your video depends directly on your Internet connection.

WhatsApp

WhatsApp supports one-on-one video and audio calls, as well as group video calls with up to 32 participants. There are chats with emojis and stickers, audio and video messages. The messenger is available both as a web version and as an app for desktop and mobile devices.

O aplicativo não requer autorização, você só precisa instalar o WhatsApp Messenger uma vez e vinculá-lo ao seu número de telefone para fazer login e se identificar. Os contatos são sincronizados automaticamente com os números de telefone no catálogo de endereços do seu telefone.

Most video calling applications rely on cloud-based infrastructure, which, although convenient, introduces potential privacy and security challenges. These risks may include unauthorized access to calls, insufficient data encryption, storage vulnerabilities, and possible privacy breaches. Additionally, some platforms might have weak security protocols, retain user data indefinitely, or share sensitive information with third parties. Such risks highlight the importance of thoroughly evaluating the security measures of any video calling platform to ensure that personal and organizational data remains protected.

Video calling can be made secure by adopting appropriate safeguards and using reliable solutions designed with privacy in mind. Platforms like TrueConf, a self-hosted video conferencing solution, significantly reduce security risks by storing user data locally and avoiding reliance on external servers or third-party providers. TrueConf employs robust multi-level security measures, including advanced encryption protocols, to ensure communication remains private and protected. For those who value confidentiality and data security, TrueConf offers a trusted and efficient solution for safe video communication without compromising functionality or ease of use.