WebRTC Gateway

Kandy Link, Ribbon's WebRTC Gateway (formerly known as SPiDR), provides an intelligent bridge between Voice over Internet Protocol (VoIP) networks and the open ecosystem of the Internet. WebRTC services make it easy to embed communication services into web pages or almost any application. As an example, Kandy Link provides a compelling way to web-enable contact center access, eliminating the need for customers to dial a separate toll-free number and reducing the need to traverse menu trees. Kandy Link performs a number of federation services to transform SIP communications to WebRTC or vice versa, so organizations can retain their SIP-based call control (App Server, PBX, contact center, etc.) and offer tools that embed real-time communications into business applications, websites, processes and workflows. 

Scale and Resiliency

Kandy Link is built on a software base that serves carriers around the globe.  That means it's designed for five 9s reliability, with redundancy and serviceability as part of the core architecture.  This is in stark contrast to many of the open source projects in the market focused on niche deployments.  Kandy Link is built to be a critical element in the call flow, ready to perform 24 X 7. 


The Kandy Link WebRTC Gateway, sits at the edge of the network and provides open, web-centric APIs that allow application developers to leverage the rich communications services of the telecommunications network; including voice, video, presence, shared address book, call history, instant messaging, and collaboration. The Kandy Link WebRTC Gateway seamlessly and intelligently interworks both the signaling and media planes between the web and telecom worlds and is offered as part of Ribbon's solutions for service providers and enterprises.

Enabling WebRTC based clients

Kandy Link introduces Web Real-Time Communications capabilities into Ribbon's cloud-ready Application Server solution, and offers WebRTC soft-clients that simplify the deployment of unified communications and collaboration. These clients include:

  • Smart Office - Ribbon's next generation UC clients that deliver a stylish and intuitive UI that is dramatically less expensive to deploy and manage
  • Ribbon Real-Time Communications Client for Skype for Business™ - An innovative solution that allows enterprises to use Skype for Business for instant message (IM), presence and contacts, but still keep their voice, video and multimedia services on their SIP network (PBX or hosted lines) and provide contextual information (emails, calendar events, attachments, etc.) for incoming and outgoing calls.

Kandy Link facilitates the deployment of universal applications, drastically reducing both the CAPEX and OPEX costs related to VoIP services for consumers and businesses. Designed using HTML5, CSS3 and Javascript, and leveraging Kandy Link's REST APIs, our clients provide a multimedia user experience and allow subscribers to easily access their services in a casual manner from any web-capable device, or more deeply integrated with the operating system via Ribbon's patent-pending Omni Client Technology.

Vertical Market Solutions

Kandy Link allows operators to exploit the capabilities of their communications networks via simple, RESTful APIs. By partnering with other market-leading organizations and vertical market experts, Ribbon is delivering breakthrough custom solutions that allow its customers to maximize revenue opportunities and win the battle for customer loyalty. With Kandy Link, communications become an integral part of the business processes and workflows for healthcare, education, hospitality, retail, manufacturing, finance, government and virtually any enterprise vertical.


Related Products

Application Server for Service Providers

Telephony Application Server for UCaaS business services and residential VoIP

Smart Office Clients

UC Clients and Collaboration Rooms


Case Study

Toy Genius enhances e-commerce with real-time communications (Kandy Concierge)


Kandy Business Smart Office Client (Desktop & Mobile)

Industry Analysis

BlogGeek.Me: Unraveling the challenges & opportunities of the WebRTC ecosystem

Solution Brief

Kandy Link WebRTC Gateway


Compete and Win with More Cost Effective UC

White Paper

Opportunities for CSPs in WebRTC and Embedded Communications

Ask Us Anything!

Ribbon's team of professionals are ready to answer your questions, guide you to the right solution or help you with your network design.