Top 10 Alternatives to No Cost Conference Recently Reviewed By G2 Community
AI can help you find the answers. G2 helps you trust them.
Connect G2 to Claude or ChatGPT for answers grounded in G2's trusted reviews, comparisons, and pricing from real user insights.
How it works
Slack brings all your communication together in one place. It’s real-time messaging, archiving and search for modern teams.
JustCall is an AI-powered customer communication platform that allows you to connect with customers instantly, automate your workflows, and coach your teams, all from a single interface. Purpose-built to serve your business communication needs, JustCall easily integrates with 100+ CRMs, Help desks, and all the business tools you need to engineer better conversations. Trusted by 6,000+ companies globally, JustCall enables customer-facing teams to enjoy seamless customer conversations with real-time and post-call AI-powered insights. Top JustCall features to watch out for: ★ Inbound & outbound calling ★ Send & receive SMS & MMS ★ Sales dialer (Auto Dialer, Predictive Dialer, and Dynamic Dialer) ★ SMS Workflows & Bots ★ Multi-level IVR ★ Real-time agent assist ★ AI-powered SMS Copilot ★ AI coaching ★ Sentiment analysis ★ AI call scoring ★ Live call monitoring ★ Shared WhatsApp inbox ★ Automatic call distribution ★ Business phone numbers in 70+ countries
Modern messaging for modern teams
Spike focuses on the features that save you time. Unified inbox, team collaboration, real-time awareness & more in a single productivity app.
Instantaneous, Audio and Video meeting collaboration. As simple as opening on a link to join a meeting on web browser, mobile devices and desktops. You no longer need to hassle your contacts with installing plugins. Just send them a link. Audio call and Video conferencing, file transfer and screen sharing. All-in-one secure service. All your data are encrypted and we assure you very high quality audio and video, screen-share and unlimited file transfer.
Cisco Unified Communications Manager (Unified CM), formerly known as Cisco CallManager, is a comprehensive call-processing system that delivers reliable, secure, and scalable voice and video communications for enterprises. It integrates voice, video, messaging, and mobility services, enabling seamless collaboration across various devices and locations. Key Features and Functionality: - Unified Communications: Provides IP telephony, high-definition video, unified messaging, instant messaging, and presence capabilities, consolidating communication tools into a single platform. - Enhanced Mobility: Supports mobile and remote workers with features that enable productivity from any location, transforming workspaces and attracting top talent. - Scalability: Accommodates organizations of varying sizes, from small businesses to large enterprises with up to 80,000 users, ensuring the solution grows with the organization's needs. - Cloud-Connected Operations: Offers Webex Cloud-Connected UC services, allowing centralized control of operations functions such as upgrades, analytics, and troubleshooting across multiple sites. - Open and Interoperable: Supports industry standards and a broad ecosystem of third-party integrations, facilitating rich collaboration and embedding communication within business applications. - Security and Compliance: Utilizes the latest authentication, encryption, and communication protocols, complying with key industry certifications to secure data and communications across various sectors. Primary Value and Solutions Provided: Cisco Unified Communications Manager addresses the need for a cohesive and efficient communication system within organizations. By integrating various communication services, it simplifies infrastructure, reduces costs, and enhances collaboration among employees, regardless of their location or device. Its scalability ensures that businesses can adapt to growth and changing requirements, while robust security measures protect sensitive information. The solution's flexibility, including cloud-connected options, allows organizations to modernize their communication systems and support a dynamic workforce effectively.
"XTIUM's Unified Communications and Collaboration (UC&C) services provide enterprise-grade voice and contact center solutions seamlessly integrated with leading platforms like Microsoft Teams and Cisco Webex. This native integration ensures a cohesive user experience without the need for third-party software or complex workarounds. By consolidating communication tools—such as email, phone, chat, and video conferencing—into a single platform, XTIUM enhances operational efficiency, reduces communication gaps, and strengthens security. Additionally, XTIUM supports hybrid deployments, catering to both traditional PBX requirements and modern collaboration needs, delivering clear audio and video tailored to your existing tech stack."
Founded in 2003, Digital Samba is a privacy-first video conferencing provider operating from within the European Union — home to the world's strongest data protection laws — and serving a global audience. Our solutions are designed with zero tracking, robust security, and long-term reliability at their core. We offer both a free, ready-to-use platform for meetings, education, webinars, training, and events, as well as Digital Samba Embedded, an API and SDK that enables organisations to integrate fully customisable, branded video conferencing directly into their own applications. Digital Samba combines minimalist design with powerful features, including HD video and audio, screen sharing, breakout rooms, interactive whiteboards, AI captions and summaries, polling, Q&A, and secure cloud recordings. For developers and enterprises, advanced options such as full white labelling, CNAME support, API control, and webhooks make deep integration seamless. Renowned for reliability, Digital Samba provides 99.99% uptime, smart bandwidth management, and enterprise-grade safeguards like E2EE, anonymised user IDs, token-based authentication, and TLS encryption. Trusted across industries — from healthcare and education to major international events — Digital Samba delivers privacy-first, scalable, and user-friendly video conferencing for a connected world.
PowWowNow is a UK-based conferencing service provider established in 2004, offering a range of communication solutions tailored for businesses of all sizes. With a focus on simplicity and affordability, PowWowNow enables organizations to conduct audio and video conferencing, as well as web conferencing, seamlessly. The platform prioritizes user experience, ensuring that users can connect with colleagues and clients effortlessly, regardless of their location. Key Features and Functionality: - Audio Conferencing: High-quality voice calls with up to 100 participants. - Video Conferencing: HD video capabilities for enhanced visual communication. - Web Conferencing: Screen sharing and collaboration tools for effective presentations. - Mobile Access: Join meetings from anywhere using mobile devices. - Flexible Pricing Plans: Pay-as-you-go options and monthly subscriptions to suit different business needs. - Instant Meeting Setup: Quick and easy scheduling with no downloads required. - International Dial-in Numbers: Accessible conferencing for global teams. - Secure Connection: Robust security measures to protect sensitive information. Primary Value and Solutions Provided: PowWowNow addresses the challenges of remote communication by providing reliable conferencing solutions that enable effective collaboration and connectivity, regardless of geographical barriers. By offering cost-effective and user-friendly tools, PowWowNow empowers businesses to enhance productivity, reduce travel expenses, and foster stronger relationships with clients and team members. The platform's scalability ensures it meets the needs of both small teams and large enterprises, adapting to varying business sizes and requirements.
Platform that enables embedding audio and video communication into your apps.