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Intelligent Edge Voice Gateway

EdgePBX Keep Every Business Call Connected

EdgePBX connects cloud communication platforms, local PSTN lines, SIP and WebRTC endpoints, AI services and business systems at the network edge. Local call control, media processing and routing keep working even when the WAN is unavailable.

Port mix, protocol support and survivability features depend on the selected model and project design.

EdgePBX · Site 01
Edge online
Branch Office Local extension mesh · 24 active
Local
Hotel Rooms Analog phones via FXS · 96 online
FXS
AI Reception WebRTC + LLM · Streaming
Live
Local survivability Active WAN outage ready
Local Survivability Local calls, recording and basic outbound routes continue during a WAN outage.
Protocol Convergence PSTN, SIP, WebRTC, MQTT, FXS and FXO unified in one edge gateway.
AI-Ready Voice Open SIP trunk, WebRTC and CTI interfaces for LLM and agent-assist applications.
Centralized Operations MQTT control, monitoring APIs and VPN networking for distributed sites.
Product Overview

What is EdgePBX?

EdgePBX is a next-generation intelligent edge voice gateway for distributed organizations. It sits between the cloud and the local site, connecting carrier lines, legacy analog phones, SIP endpoints, WebRTC clients, AI applications and business systems.

Core call control, media processing and base routing policies run locally at the edge. When the public network is interrupted, local extension calls, local recording and basic outbound calling can continue without waiting for the cloud to recover.

A unified abstraction layer converts PSTN, FXS/FXO, SIP, WebRTC and MQTT into one manageable communication node—so traditional voice and AI services can share the same local infrastructure.

Connect cloud and local, converge communications and business, and carry both traditional voice and AI applications.
Cloud-Edge-End Architecture

Cloud intelligence, edge autonomy, local control

EdgePBX places call control and media processing where the calls actually happen, while keeping cloud management and AI services in the loop.

01 · Cloud

Cloud services and unified control

Connect to Cloud PBX, Vantek Console, AI speech services and cross-site management without forcing every call through the cloud.

  • Number, extension and routing management
  • AI voice and large language model access
  • Centralized monitoring and batch configuration
02 · Edge

EdgePBX at the local site

Local call control, media processing, routing, recording and security run on the gateway, close to users and lines.

  • Local extension calling and basic outbound routes
  • Intelligent degraded routing and local ACD queue
  • Local recording, firewall and VPN networking
03 · End

Every device and business system

Keep existing analog assets and connect modern SIP, WebRTC and AI endpoints through the same gateway.

  • Analog phones, fax machines and PSTN lines
  • SIP desk phones, softphones and Web consoles
  • Hotel controllers, CRM, CEM and AI applications

EdgePBX performs call control, media processing and base routing locally. Cloud services remain available for management, AI and cross-site collaboration, but are not a single point of failure for local calls.

Business Continuity

Designed to keep the line open

EdgePBX combines hardware-level and software-level survivability so that a power, network or cloud incident does not stop every call.

Power-Loss Bypass

Hardware-level failover keeps designated PSTN lines reachable if the device loses power.

WAN Outage Local Direct

Local extensions, local recording and basic outbound calling can continue without a working internet connection.

Intelligent Degraded Routing

The gateway probes network state and automatically sends calls to local extensions when the cloud contact center is unreachable.

Local ACD Queue

Inbound calls can wait in an edge queue when the front desk or local agents are busy, reducing abandoned calls.

Built-In Edge Security

Enterprise firewall capabilities help protect against SIP scanning, DDoS and brute-force attempts at the site boundary.

Local Recording and QC

Store recordings at the edge to meet local data and compliance requirements while keeping quality review possible.

AI Integration

The super interface between cloud AI and local business

EdgePBX gives AI applications a high-quality, low-latency audio and signaling path into the site—without replacing the existing phone system.

EdgePBX
LLM & Voice AI
Web Console & CTI
CEM & Tickets
Audio Multicast
Full-duplex AI voice over SIP trunk and WebRTC for streaming, two-way conversations with LLMs and voice agents.
WebRTC and call-state control APIs support custom web consoles with live transcription, intent extraction and script recommendations.
AI-CEM asynchronous workflows push audio and signaling to analysis engines during or after a call, then create follow-up tickets automatically.
Audio multicast and distribution interfaces support hotel reception, multinational meetings and real-time interpretation.
Pair with the unified recording and AI quality inspection platform for recording management and configurable QC frameworks.
Engineering & Operations

Built for hundreds of sites, not one closet

EdgePBX is designed for distributed deployment. Device, port and line status are exposed through APIs, while MQTT and VPN networking keep remote sites manageable without a local IT team.

One control plane for configuration, monitoring, remote actions and secure site-to-site connectivity.
Full-Stack Status APIs
MQTT Control Center
IPsec / OpenVPN Networking
Industrial Fanless Design
Vantek Console, Zabbix, Prometheus
Batch Configuration and Remote Reboot
Deployment Scenarios

Put local intelligence where your business operates

Deploy EdgePBX at branches, hotels and service sites, and keep the cloud in control of policy, AI and cross-site collaboration.

Multi-Site

Multi-Branch and Chain Networks

Deploy a core Cloud PBX or Vantek Console at headquarters and a lightweight EdgePBX at each store or office.

Business outcome: free short-number dialing over VPN, a consistent outbound caller ID and lower branch IT workload.

Hospitality

Smart Hotel Modernization

Aggregate analog room phones, SIP front-desk consoles and smart room controllers in the hotel equipment room.

Business outcome: reuse existing analog assets and add AI voice services and smart-room control without replacing every phone.

AI Service

Edge AI Contact Center

Connect local agents through WebRTC and CTI, then link the gateway to your web console and large language models.

Business outcome: real-time customer context, intent prediction and script prompts, with automatic CRM tickets after the call.

Companion Platform

Turn every conversation into structured operational data

EdgePBX can be paired with a unified recording and AI quality inspection platform. The platform provides recording management and a configurable QC framework that customers can adapt to their own processes, standards and systems.

Audio → dual-track transcript → QC dimensions → demand category → workflow action

Unified Recording Management

  • Search by number, agent, direction, QC status and date
  • Automatic number-to-agent call association
  • Completed, analyzing, no-recording and short-call states
  • Call data export and permission controls

Demand Classification and Workflow

  • Multi-level demand tree with AI and manual adjustment
  • Create tickets, send notices, call APIs or request review
  • Dashboards, custom reports and CSV/XLSX export
  • Industry templates, webhooks and open extension points

Recording access methods, open interfaces and delivery scope depend on the actual product version and project plan.

Hardware and Port Matrix

Choose the port mix that fits each site

EdgePBX uses industrial-grade components and a fanless design for silent, 24/7 operation. Standard and custom port combinations support small offices, branch sites and extension-dense locations.

Standard Configurations

Common combinations for branch offices and local offices.

Model FXO Trunk Ports FXS Extension Ports Recommended Use
4O2S 4 2 Small office with multiple PSTN lines
6O4S 6 4 Medium branch with local extensions
4O12S 4 12 Central office with dense local extensions
O = FXO trunk to the PSTN S = FXS extension for analog phones or fax

Custom Configurations

Port combinations for specific industry requirements.

Model FXO FXS
3O3S 3 3
4O4S 4 4
8O8S 8 8

Custom port configurations are available for non-standard industry requirements. Final port count, power-loss bypass behavior and accessory options are confirmed in the project design.

Build Your Edge Voice Layer

Put intelligent voice at the edge of your business

Tell us about your sites, existing lines, endpoints and AI requirements. We will help define the right EdgePBX model, port mix and deployment architecture.

Discuss your EdgePBX requirements

Share your deployment scope and we will respond with a tailored plan.

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