Sjphone is a software-based VoIP client that allows users to make voice and video calls over the internet. It supports various protocols, including SIP and H.323, enabling communication with other VoIP devices and services.

About Sjphone
Sjphone was a VoIP client developed to facilitate voice and video communication over the internet using protocols like SIP and H.323. It was created by SJ Labs in the early 2000s to provide users with a versatile, software-based communication tool.
Strengths of Sjphone included its support for multiple protocols and cross-platform compatibility. Weaknesses involved limited updates and less user-friendly interface compared to newer applications. Competitors included softphones like X-Lite, Zoiper, and Bria.
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How to hire a Sjphone expert
A Sjphone expert must have skills in configuring SIP and H.323 protocols, troubleshooting VoIP connectivity issues, understanding network configurations, managing codecs, and setting up NAT traversal techniques. Knowledge of operating systems supported by Sjphone is also essential.

Felipe A.
Skills
Holds a Bachelor's Degree in Information Systems from Faculdade Católica do Tocantins (FACTO). Exhibits a strong passion for technology, with a particular interest in front-end development. Demonstrates proficiency in agile methodologies, organizational skills, and UI/UX design. Possesses extensive experience with various technologies including HTML, CSS, SASS, Vanilla JavaScript, TypeScript, React, Angular 9+, Vue.js, Git (Git Flow, Conventional Commits), Node.js (Express.js, Gulp), MySQL, MongoDB, Firebase, REST API, and Docker.

Alexandre R.
Skills
System Analyst with four years of expertise in development across Trade Marketing, Finance, and Audit sectors, with a strong emphasis on Web and Mobile front-end development. Accomplished in deploying a range of key technologies including JavaScript, AngularJS, SQL Server, Node.js, Express, React/Next.js, Ionic, React Native, Material UI, and Tailwind CSS. Additionally, possesses substantial experience in testing frameworks such as Jest, React Testing Library, and Cypress.

Renato N.
Skills
Currently engaged in the development of a platform titled Portal do Candidato, focusing on enabling users to track their applications to higher education courses. This platform is crafted to assist many in achieving their academic aspirations by providing a user-friendly interface that facilitates the college admission process. Responsible for front-end development, this role not only imparts technical skills but also contributes to the enhancement of individuals’ lives through education. Driven by a passion for knowledge, continuous learning, and self-improvement, this professional leverages extensive specialization and market experience to significantly advance the project's goals while finding personal fulfillment in the process.
Open to inquiries and keen to collaborate with new teams, always ready to embrace new challenges.

Bruno N.
Skills
With over 20 years of experience in IT, the primary focus has been on database management. Roles undertaken encompass Database Administrator (DBA), SQL Developer, Database Analyst, and Data Architect. Demonstrating a calm demeanor and resilience, positive outcomes are consistently achieved under pressure. As a Database Analyst, there is extensive knowledge in OLTP and OLAP data modeling, ensuring the accurate implementation of diverse business rules. Additionally, a new data architecture has been developed to centralize data from various sources into a single, restructured repository.

Adriel P.
Skills
Full-stack Web Developer with expertise in Unix/Linux environments, specializing in Ubuntu and OpenSUSE. Certified in Google Apps administration, with proficiency in Oracle DB 10g and 11g, as well as MySQL database management systems. Experienced in developing applications using the Laravel 5 framework.

Elielcio O.
Skills
A highly experienced Back-end Developer with over a decade of expertise focused on web development and infrastructure. Specializes in projects that demand high availability and seamless API integrations, as well as effective queue management. Demonstrated capabilities in coordinating development teams, defining architectural frameworks, selecting appropriate technologies, and managing team deliverables. Proficient in JAVA programming, Delphi, and SQL languages. Areas of interest include application scalability, infrastructure optimization, best development practices, and advanced methodologies such as Test-Driven Development (TDD) and Behavior-Driven Development (BDD).

Pedro H.
Skills
A seasoned Mobile Developer with over five years of experience, skilled in Progressive Web Apps (PWA) using React and Angular, as well as in hybrid development with Flutter. Proficient in both native Android and iOS development. Recognized for strong communication skills and effective team integration, consistently providing constructive feedback and fostering a positive work environment. Distinguished by technical expertise and the ability to deliver projects swiftly and efficiently.

Edson J.
Skills
Back-end developer with over five years of experience in web development and infrastructure, specializing in high-impact applications. Proficient in functional programming, object-oriented programming (OOP), DevOps practices, PHP, Laravel, and Ajax. Focused on application scalability, infrastructure, and best development practices. Committed to developing innovative solutions through collaborative efforts.
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