Core Interworking Gateway

About Core Interworking Gateway

Pharos' Core Interworking Gateway (CIG) is an enhanced Diameter Interworking Function system that provides a single integration point for connecting wholesale partners to your network, enabling low-risk, cost-effective, and quick integrations.

CIG uniquely focuses on integrating wholesale customer systems to the MNO environment using these distinctive approaches that enhance your success with wholesale partners:

  • MNO-focused: CIG is the only solution on the market that specifically caters for the MNO’s interests when integrating with wholesale partners. It especially addresses the security issues and integration complexities that complicate projects.
  • Fuss-Free Integrations: CIG enables seamless integration with any standards-based third-party systems, expanding your potential market and making your wholesale offering more competitive.
  • Shorter ROI: CIG lowers onboarding costs for each wholesale partner, shortening your ROI and payback period. This enables onboarding of even marginally profitable partners, helping you scale effectively.
  • Accelerated Deployments: CIG enables much quicker deployment of data services for wholesale partners, dramatically quickening their time to market and reducing costs.

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Key Benefits


  • Grow wholesale revenue.
  • Maximise network resources.
  • Acquire access to niche markets.
  • Minimise costs with easy onboarding and management.
  • Get better control of partner integrations.
  • Optimise your core network.
  • Enable offline partner charging.

Key Features


  • Wholesale Mobile Services Reselling: Enable wholesale partners to provide their subscribers with your mobile voice, data, SMS, and USSD services by providing them with service control and charging capabilities.
  • Limit Service Usage: Manage and enforce credit limits for each of your mobile services to prevent partners from draining network resources allocated for your own subscribers.
  • Automated Customer Care Short-Code Routing: Automatically route generic customer care short codes to partners' call centers.
  • Offline OCS Charging: Let each partner—whose OCS goes offline—request that you temporarily activate Charging Bypass.
  • Built-In Diameter Routing Agent (DRA): Remove the need to purchase a separate DRA to route Diameter traffic to its corresponding end points.

Why CIG?


In today's digital world, more and more wholesale partners like MVNOs, MVNEs, and resellers are emerging. This is great news because they bring wholesale revenue to mobile operators and added value to subscribers.

To support these wholesale partners, it's essential to have an interworking solution that allows them to use their Diameter-based Online Charging Systems (OCS) to control and charge their subscribers for consuming your mobile data services.

CIG allows you to create a robust wholesale ecosystem by providing efficient service control and seamless charging integration with third-party systems. It is a crucial enabler for a successful wholesale product offering, helping you monetize your data network while managing risks and reducing costs:

  • Grow Revenue: Generate revenue through a wholesale business solution with:
  • New Customers: Grow your customer base through wholesale partnerships to gain access to new subscribers.
  • Excess Network Capacity: Maximise the utilisation of your current network capacity and achieve revenue growth without adding additional network costs.
  • Niche Markets: Expand into niche markets by engaging partners with existing customer bases.
  • Manage Risks: Effectively address deployment time and security concerns when connecting with wholesale clients on your network through:
  • Quick and Simple Integrations: Easy activation and deactivation of partners reduces the risk of new MVNO or reseller failures by lowering onboarding costs.
  • Single Point of Control: CIG provides you with one core point for third party integration, configuration, reporting, monitoring, and troubleshooting.
  • Topology Hiding: CIG’s architecture hides the mobile operator’s core network topology from the outside world.
  • Offline MVNO Charging: When an MVNO's OCS goes offline, the MVNO can request temporary Charging Bypass activation, allowing subscribers to use MNO services within set credit limits.
  • Reduce Costs: Reduce your costs by streamlining integration efforts and making more effective use of network resources:
  • Easier Support: A centralised control point reduces support workload by streamlining setup, leading to fewer and easier issues.
  • Simplified Architecture: CIG requires integration into the core network just once. Each MVNO needs only a single Diameter integration, saving valuable technical resources.
  • Simplified Network Configuration: CIG simplifies the configuration of core network components, saving time and costs.

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