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class 4 softswitch documentation update - #409

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class 4 softswitch documentation update#409
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@Bani2791Bani2791 commented Jul 29, 2026

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Comment threaddocs/spec.md

</details>

## Overview

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overview is confusing

This needs to be changed

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Overview

ConnexCS is a cloud-based Class 4 Softswitch designed to route and manage VoIP calls between different telephony networks.

A Class 4 Softswitch operates at the network level. It receives a call, determines the appropriate destination based on configured routing rules, and forwards the call to the selected carrier or downstream system.

ConnexCS does not provide the end-user call endpoint. Instead, it acts as an intermediary between customers, carriers, and other VoIP systems, providing the routing and switching layer that connects different networks.

ConnexCS provides capabilities such as:

  • Call routing based on configured routing strategies
  • Carrier selection based on destination, rates, quality, and other criteria
  • Number and CLI manipulation
  • Call authorization and validation
  • Billing and usage management
  • Traffic and call monitoring
  • Interconnection between multiple VoIP networks

For example, when a customer sends a call through ConnexCS, the platform evaluates the call against the configured routing rules and determines which carrier should receive it. ConnexCS then routes the call to the selected carrier.

Customer → ConnexCS Class 4 Softswitch → Carrier → Destination

Class 4 vs. Class 5 Softswitch

A Class 4 Softswitch is primarily designed for handling and routing traffic between telecommunications networks. It focuses on high-volume call routing, switching, interconnection, and traffic management.

A Class 5 Softswitch, on the other hand, is designed for end-user services and provides features such as voicemail, call forwarding, announcements, and other subscriber-facing functionality.

ConnexCS is a Class 4 Softswitch and can connect to Class 5 Softswitches, dialers, and other VoIP applications that require a routing platform.

Cloud-Based Platform

ConnexCS is delivered as a Platform as a Service (PaaS). This allows customers to use a globally distributed and scalable Class 4 switching infrastructure without managing the underlying switching hardware or infrastructure.

Customers can connect their VoIP systems, carriers, and applications to ConnexCS and use the platform to manage and route their voice traffic across multiple networks.

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