All-in-One SIP Trunking Solution for Wholesale Carriers and PBX Providers

Offer SIP-Based DIDs to Retail VoIP and Prepaid Service Providers, SMBs and Enterprises

SIP Trunking Solution

The IPsmarx SIP Trunking Solution is an all-in-one platform that enables wholesale VoIP service providers and PBX providers to offer SIP-based DIDs, also known as virtual phone numbers, to retail VoIP service providers, call centers, prepaid and calling card operators as well as business clients such as SMBs and enterprises.

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Class 5 Softswitch

Streamlined Management and Integrated Billing

With its intuitive web interface and integrated billing, the IPsmarx SIP Trunking Solution enables you to:

Create multiple origination and termination plans and packages
Create multiple rate plans for different customers
Charge per month, per call or per minute
Charge for multiple services, separately or together

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Replace Business Clients’ Legacy Phone Service with DIDs

The IPsmarx SIP Trunking Solution enables you to replace traditional phone numbers assigned to PSTN lines with SIP-based DIDs, allowing you to offer cost-effective, feature-rich VoIP service to business clients.

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legacy phone services
SIP trunking DID Packages v1

Offer Attractive DID Packages to Drive New Revenue Streams

With the IPsmarx SIP Trunking Solution, both wholesale VoIP carriers and PBX service providers can create new revenue streams by selling multi-channel DIDs, either separately or in packages.

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Seamlessly Integrated Ecommerce Web Portals

Make customer payments easy with user-friendly ecommerce portals.

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finance v2 - updated

Reduce Costs and Improve Efficiency

By providing automated billing and invoicing as well as streamlined DID management, the IPsmarx SIP Trunking Solution reduces overhead and its associated costs—such as the need to hire an employee to manage carriers and customer accounts.

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Core Features

IPsmarx solutions make use of 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

  • 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

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

IGT Networks

Read about how IPsmarx solutions helped IGT Networks better serve its business clients.

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

  • Advanced RTP Management
  • Auto-Provisioning
  • Class 5 Server
  • H323 Support
  • Redundancy
  • SIP Card
  • Spanish Platform
  • Support Ticketing System


  • 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