Tag: IWF

Renna Mobile implements Squire Technologies Interworking Function to integrate a Diameter based OCS system

Oman’s fastest growing and leading mobile virtual network operator (MVNO) Renna Mobile have completed the first phase implementation of UK signalling experts Squire Technologies Interworking Function (IWF) as an instrumental part of their network transformation.

The solution provides a seamless and highly cost effective means for Renna Mobile to bridge the border between legacy SS7 and their Diameter based OCS/billing platform.

While meeting with Renna Mobile’s specific requirements as opposed to providing a costly vanilla solution; the virtualised interworking functions modular design now allows Renna Mobile to deliver further integration functionality in their network.

Group CTO Milan Jovancic commented “We required a flexible solution in delivering the specific functionality, meeting our needs and technical specifications while being on budget. Squire Technologies SVI-IWF Interworking Function delivered this. We will now use the SVI-IWF to leverage further integration in our network and our hosting operator.”

Having experience of Squire Technologies through their voice services and traditional gateway products the team at Renna Mobile approached them looking for a cost efficient end-of-life replacement plan having had vendors push overly complex solutions at prohibitive costs.

 
About Renna Mobile
Launched in May 2009 Renna Mobile is Oman’s leading Mobile Virtual Network Operator (MVNO) providing superb network coverage via Omantel’s superior telecom network. Offering fantastic value and customer service they are the fastest growing MVNO in Oman.

About Squire Technologies
UK based Squire Technologies combine a comprehensive range of carrier grade signalling products for IMS, LTE, VoIP and Legacy Networks with a flexible approach and ability to rapidly engineer creative solutions to complex networking challenges.

Integrating an OCS Platform to Facilitate 4G to 3G Roaming

Diameter Signalling

With DIAMETER signalling becoming the key interface for next generation networks and increasingly being driven by the growth of LTE, IoT, autonomous vehicles and VoLTE, it is crucial that operators are able to seamlessly communicate with subscribers as they traverse between legacy networks and IMS.

As a mobile operator deploys a state-of-the-art online charging system (OCS) in their 4G network, the platform needs to overcome inter-op challenges with subscribers as they roam into 3G networks.

An OCS platform typically supports a range of interface technologies – XML, HTML, JSON, DIAMETER etc. The charging functions in 3G networks are handled over the legacy SS7 CAMEL protocol. Furthermore in some 3G networks pre-pay subscribers are dynamically credit checked by the network over  Unstructured Supplementary Service Data (USSD), a legacy protocol commonly used for billing, location based services, mobile money and menu based information services.

To deliver end-to-end  3G <-> 4G Roaming you need to provide both CAMEL to DIAMETER and DIAMETER to USSD functionality.

 

THE SOLUTION
In order to manage the flexibility of DIAMETER and the forecasted volumes of signalling data the industry has developed a set of standard DIAMETER based network products. Included in this product set is the  Inter-Working Function (IWF)  which provides 3GPP specified DIAMETER to  SS7 CAMEL, MAP and RADIUS interworking and is obviously the primary product interface to the OCS.

 

 

At Squire Technologies our SVI_IWF product is tightly integrated with our Telephony Application Server (SVI_TAS) which provides a set of flexible API’s to allow for the rapid deployment of new interfaces, in this instance used to provide USSD to DIAMETER. The operator then went one step further and delivered a separate USSD application. They decided the interface to the OCS would optimally be performed over HTTP. It was a straightforward task to manipulate the HTTP API on the SVI_TAS to deliver this extended functionality.

 

The IWF is deployed and embedded in a pair of DIAMETER Routing Agent’s (DRA’s) that provide resiliency through redundancy, load sharing and balancing via sophisticated on-board routing.

Full support for session binding insures correct online credit control is being performed when multiple simultaneous services are being billed for a single subscriber.

 

 

This solution provides both flexibility and scalability for the operator. As network demand increases new instances of the OCS platform can be launched and configured to point its DIAMETER interface at the pair of DRA’s which will automatically route messages to and from the appropriate OCS. This model allows for ease of deployment in a cloud based NFV network allowing OCS resources to be easily deployed or removed as network demand dictates.

 

 

Agile Interworking: Protecting Investments by Connecting Legacy Services to IMS and LTE Networks

Download the solution paper now!

SS7 has long been established as the primary signalling protocol used in today’s fixed and mobile networks. As such, operators are asking the question: how can we connect our services to an IMS-based or Diameter-enabled network from legacy infrastructure?

The solution comes from the deployment of specialist, custom solutions that solve individual problems and collectively provide a platform for incremental future network evolution. The Squire Technologies 3GPP compliant SVI_IWF (Interworking Function) enables legacy solutions to be extended to LTE and IMS networks, with flexible deployment options, customised interworking intelligence, and providing the foundation for a step-by-step approach.

What you’ll learn from the solution paper:

  • How to safeguard your portfolio of revenue-generating legacy services
  • The importance of the Diameter IWF
  • How Squire Technologies goes beyond standards to solve custom challenges

Click here to download the IWF solution paper.

SS7 to Diameter – A new challenge for operators

Interconnection specialists Squire Technologies launch new SS7 to Diameter interworking function solution, helping solve interconnection challenges between legacy and NGN platforms.

Download our Diameter Interworking case study

Interworking between different networks and systems is a constant thorn in the side for operators. Even if everyone adopts the same protocol, there can be differences in implementation. To enable these systems to communicate and exchange information and to support efficient service delivery, protocol conversion and interworking must take place.

SSEvery network and operator infrastructure is different. Vendors may implement standards in different ways – such differences may be perfectly permissible and different operators may choose to follow different versions of standards. Heterogeneity is the norm, despite the enthusiastic adoption of standards around the world.

The advent of LTE is adding to this problem as it uses an entirely different set of core standards for the control of signalling and subscriber services. Instead of the long-established SS7 signalling that is used in 3G, 2G and fixed networks, LTE uses Diameter signalling to perform the same functions. That’s great, but it means that such networks must be capable of interoperability with networks that support legacy SS7 signalling.

This problem is known and has been addressed through the development of an interworking specification between SS7 MAP and Diameter (3GPP TS 29.305). This provides a template for ensuring compatibility between common SS7 interfaces and their Diameter equivalents, as well as accounting for specific differences in the data conveyed.

We have a long history in implementing and deploying interworking solutions, helping operators to overcome network incompatibilities and to ensure subscribers can access different services in different circumstances – for example, when roaming into new networks or when dropping out of zones covered by one technology (e.g. LTE) into a legacy domain (e.g. 3G).

That’s why we have launched the SVI_IWF, a fully compliant 3GPP SS7 to Diameter interworking function. It’s a high-performance implementation that can be deployed as a standalone device or as an extension to an existing Squire Technologies’ solution.

If you are confronted by interworking challenges, we can offer a solution – ensuring that your subscribers obtain seamless service and that you address new and emerging needs. Our expertise means that operators that need to interconnect Diameter-compatible solutions with legacy platforms can do so confidently and with the knowledge that we can also cope with the unique circumstances of each case. Our SVI_IWF is a turnkey solution but we can also rapidly customise it to adapt to different demands.

At Squire Technologies, we know the value of standards – but we also understand the demands of a heterogeneous world. This means we can ensure we deliver proven solutions that are tailored to your specific situation. If you need help in interworking SS7 to Diameter, why not get in touch to see what we can offer?

Download our Diameter Interworking case study

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