Class 4 Softswitch for Wholesale VoIP Carrier Services

Scalable and Robust Platform with Advanced Call Management, Monitoring, Reporting, Billing and More

Class 4 Softswitch

The IPsmarx Class 4 Softswitch is a scalable, all-in-one solution that enables wholesale VoIP carriers to deliver robust inter-exchange and inter-LATA VoIP services to retail providers. The IPsmarx Class 4 Softswitch integrates billing and taxation, call routing and carrier management into a single platform that is easily managed from a user-friendly web interface.

Request a Personal Demo

Intelligent Call Routing and Carrier-Grade Compatibility

With comprehensive codec and protocol compatibility and features like failover support, the IPsmarx Class 4 Softswitch is designed to support high volume traffic and deliver reliable, high quality wholesale VoIP service.

Failover Support
High Codec and Protocol Compatibility
Unlimited Multiple Carrier Support

Request a Personal Demo

Control Revenue with Integrated Billing and Invoicing

The IPsmarx Class 4 Softswitch equips service providers with the sophisticated billing features they need to control costs and maximize revenue, including:

Advanced Taxation System
Integrated RADIUS-based Billing

Request a Personal Demo
finance v2 - updated
quality v cost

Keep Competitive with Least Cost Routing and Multi-Carrier Management

Service providers can maximize their options in terms of quality and price using advanced multi-carrier management, which in turn enables powerful features like Least Cost Routing.

Least Cost Routing ensures that traffic will be routed over the most cost-effective routes, helping providers save on costs. These savings can be passed on to customers in the form of competitive rates or kept in order to increase profits directly.

Request a Personal Demo

Scalable Solutions for Carriers at All Levels

The IPsmarx Class 4 Softswitch is a scalable platform that can be customized to the needs of carriers at all levels—from those just entering the wholesale telecom market to established carriers in need of a robust, high capacity platform.

Startup Wholesale Carriers — Less than 5 Million Minutes per Month
Mid-Size Wholesale Carriers — Up to 5 Million Minutes per Month
Enterprise Wholesale Carriers — More than 5 Million Minutes per Month

Request a Personal Demo
scalablity carrier-provider

Core Features

The IPsmarx Class 4 Softswitch includes the following features.

Call Management

  • Carrier Failover Support
  • Fax & Video Support
  • Port Limitation Support
  • Prefix-based Routing
  • Priority-based Routing
  • SIP Proxy with Topology Hiding
  • Unlimited Multiple Carrier Support


  • Advanced Taxation System
  • Flexible Payment Structure
  • Integrated RADIUS-based Billing
  • Promotion Management Tool
  • Rounding Charge Support

System Management

  • Centralized Web Based Administration
  • Carrier Grade Reliability & Compatibility
  • High-Level Codec & Protocol Compatibility
  • Customer Service Agent Management
  • Multiple Levels of User Access
  • Import/Export Capabilities
  • Online Backup System
  • Email Notification System
  • Flexible Customer Group Definition

Monitoring and Reporting

  • ACD (Average Call Duration)
  • ASR (Average Success Ratio)
  • Calling Card Reports
  • CDR (Call Detail Record)
  • Country/City Reports
  • Customer Reports
  • Real-Time Monitoring Tool
  • Security Logs
  • Unsafe Account Monitoring

Wholesale VoIP Carrier

IPsmarx technology enables wholesale VoIP carrier to bypass traffic block and brings VoIP to an otherwise inaccessible area.

Download Case Study

Custom Features

Choose from the following features to customize a bundle tailored to your business model.

 Customer Experience

  • Additional IVR Languages
  • Custom Welcome IVR
  • Mobile Top Up
  • Mobile Top Up Through IVR
  • Recharge Through IVR
  • Sign Up Through IVR
  • SMS Notifications
  • Speed Dial
  • Transfer Card Balance

  Call Management

  • DID Forwarding
  • DID2IP
  • Direct DID
  • Hunt-Stop & Route Suspension
  • IP Video Support
  • Least Cost Routing (LCR)
  • Multi-Dial Plan

 System Management

  • Application Manager
  • Carrier Grade Reliability & Compatibility
  • Centralized Web Based Administration
  • Customer Service Agent Management
  • Data Encryption for Critical Data Storage
  • Distributed Architecture
  • Email Notification System
  • High-Level Codec & Protocol Compatibility
  • Multiple Levels of User Access
  • Online Backup System
  • Transport Layer Security (TLS)
  • Unified Customer Management


  • Auto Recharge/Recurring Billing
  • Disconnect Fee
  • Invoicing
  • Minute Shrinking
  • Package Billing
  • Step Billing
  • Unified Invoicing

 Resellers and Agents

  • Reseller Management
  • Payment Based Reseller
  • PINless Reseller
  • Reseller Web Portal
  • Retail Store Recharge Through IVR
  • Usage Based Reseller
  • White Label Reseller



  • Gift Card
  • Promotional Tools


  • Customer Portal
  • E-Store