Siperb Launches Free WebRTC-to-SIP Proxy Service to Modernize Legacy PBX Systems
Cloud-Based Solution Enables Businesses to Add WebRTC Calling Capabilities Without Infrastructure Overhaul

Cape Town, South Africa – October 10, 2025 – Siperb, a telecommunications technology innovator, today announced the general availability of its WebRTC-to-SIP proxy service (https://www.siperb.com) and softphone platform, designed to bridge traditional PBX systems with modern web-based communication capabilities.
The solution addresses a critical challenge faced by businesses worldwide: how to leverage advanced WebRTC technology without replacing existing telephony infrastructure. Siperb's platform enables companies to add browser-based and mobile calling to their current Asterisk or FreeSWITCH PBX systems through a hosted proxy service.

Solving the WebRTC Integration Challenge

Many organizations operate legacy PBX systems that lack native WebRTC support, creating barriers to remote work enablement and modern communication workflows. Siperb eliminates these barriers by acting as an intelligent WebRTC to SIP proxy between traditional SIP-based systems and WebRTC endpoints.
"We recognized that businesses shouldn't have to choose between their existing infrastructure investments and modern communication capabilities," said [Your Name], [Your Title] at Siperb. "Our platform gives organizations the flexibility to modernize at their own pace while maintaining full control over their telephony systems."

Key Features and Capabilities

The Siperb platform offers:

Zero-Infrastructure WebRTC: Free hosted proxy service eliminates the need for WebRTC configuration on existing PBX systems
Multi-Platform Support: Web applications, native mobile apps (iOS/Android), and browser phone extensions for Chrome, Firefox, Safari, and Edge
End-to-End Encryption: All WebRTC calls are encrypted, with media remaining secure throughout transmission
Flexible Connection Options: Supports both proxy relay and direct client-to-server configurations
Automatic Provisioning: WebRTC credentials are automatically provisioned, eliminating password management complexity
Media Transcoding: Converts WebRTC media (Opus DTLS) to legacy codecs like G.711 for older PBX compatibility
Progressive Web App: Full PWA support enables installation as a native application on Windows and macOS

Free Basic Service with Premium Options

Siperb offers a free tier that includes the proxy service, web application, and mobile clients—making WebRTC accessible to businesses of all sizes. Premium options are available for organizations requiring direct client-to-server connections or advanced features like call recording storage, transcription, and analytics.
The platform's architecture supports unlimited connections, allowing businesses to provision one connection per extension without artificial limitations.

Technical Architecture

Siperb's proxy service supports both inbound and outbound registrations, as well as register-less connections. Organizations can choose their media routing strategy based on their infrastructure:

Full Media Relay: For legacy PBX systems without WebRTC support, with transcoding provided
Proxy Relay: For systems with DTLS capability but without WebSocket support
Direct Connection: For WebRTC-capable systems requiring only provisioning and management features

The platform includes global points of presence to minimize latency, with automatic or manual selection based on network conditions.

Availability

Siperb is immediately available for signup at www.siperb.com/phone. The free basic service includes full access to the WebRTC proxy, web application, and mobile applications. Organizations can test the platform with their existing PBX systems without commitment.
For more information about Siperb's WebRTC-to-SIP proxy service, technical documentation, or partnership opportunities, visit www.siperb.com or contact [your email].

About Siperb

Siperb provides cloud-based WebRTC solutions that enable businesses to modernize their communication infrastructure without replacing existing PBX systems. The company's hosted proxy service and multi-platform softphone applications bridge traditional telephony with modern web-based calling capabilities, supporting organizations in their digital transformation journey.
Media Contact:
Justin Downes
SEO & Marketing Consultant
Siperb
[email protected]
+27 78 470 4675
www.siperb.com