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STANDARDS-BASED MOBILE CORE SOLUTIONS 

Solutions for GSM 2G and 3G Mobile Core Networks

Proven in hundreds of deployments in dozens of countries, our GSM core network solutions help you maintain core investments and maximise ROI.

OUR TECHNOLOGIES

2G and 3G GSM Core network solutions

Explore our solutions for your network and find out how we can support your network evolution and transformation goals.

Protect your investments and maintain your core assets

Many operators depend on their 2G and 3G networks – but a growing number of vendors have withdrawn support for these vital assets.

Extend network lifecycle

WTL continues to invest, building on a heritage of nearly 30 years, giving you high-performance platforms that extend the life of your network and ensure service continuity and ease of management.

Linear scalability

Our solutions offer linear scale to guarantee performance. With SLAs and our expert team, your network benefits from solutions that deliver to support your core services. Optimised with a lightweight footprint and for reduced energy demands, we offer cost-effective solutions to drive transformation.

2G/3G

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Flexible HLR and AUC

WTL offers a complete, integrated HLR and AUC solution, built for migration from legacy platforms to deliver a reliable, modernised platform.

Manage subscriber mobility and routing

Our HLR fulfils all specified requirements and complies with GSM operational procedures, across all interfaces. You can consolidate from multiple systems and deploy a single, unified solution to reduce operational costs and support.

Support for migration processes

WTL’s experts offer support for migration and deployment programmes, ensuring that your new HLR is delivered exactly as required with processes for data import, validation and conformance – so you can easily retire platforms and avoid transformation pitfalls. It provides a future-proof solution to protect your core GSM services.

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Gateway MSC and Session Control

Available as a dedicated GMSC function or with combined session control, our solution protects your network and provides core routing functions for inbound MT calls.

Flexible, reliable routing

Optimised routing with full interworking with external networks and your STP / transit layers. Our GMSC supports ISUP and SIP for call termination and interconnects with any HLR solution, while enforcing your routing logic and policies.

Enhance quality and reduce fraud

WTL’s GMSC gives you the control you need to control inbound call quality and routing, backed by border protection capabilities to prevent fraudulent attacks on your network. With reliability and redundancy options, it provides the service performance you need to continuously manage traffic delivery.

 

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Short Message Service Centre

WTL’s SMSC solution supports classical text messaging (P2P and A2P) and MMS, as well as USSD for service activation and interaction.

Interconnection and routing

In addition to supporting your own messaging services, our SMSC enables interconnection with peers and enterprise partners, so you can support global message delivery and enable B2C A2P services via the SMPP interface for communication and authentication.

High-volume message delivery

Up to 1000 MSUs per second can be supported, offering the scale and performance without compromise you need for reliable service delivery – backed by QoS reporting to meet SLAs and KPI targets. GTT and SCCP manipulation can also be supported, enabling custom service configurations.

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Unstructured Supplementary Service Data

USSD transactions and messages are essential to GSM networks – for account queries, payment confirmation, callbacks and more – and enable custom services.

Pull and push modes

Both USSD Phase 1 and 2 are supported, enabling session-based two-way interaction between user and network. Real-time capabilities provide a valuable complement to messaging-based interaction and give feature-phone users access to key services – maintaining accessibility for your subscribers.

Support universal access

USSD functions when internet access is unavailable, so GSM users (or devices attached to GSM networks) can still use USSD interaction to support secure transactions, retrieve information and configure services. With our USSD platform you can easily support banking, retail, health and public service applications.

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Signal Transfer Point

High-performance STP solution for efficient, reliable and high-speed routing of SS7 signalling messages – both in your network and for exchanging traffic with peers.

Full Global Title Translation

GTT capabilities ensure effective seamless worldwide message routing and interconnection with peer networks. Traffic screening and filtering prevents signalling attacks and protects your network from threats while also enhancing message deliverability and quality.

Robust performance

STPs are the cornerstone of 2G and 3G networks, so reliability is paramount. Our STP solution is built for Tier 1 service, with full redundancy and high availability. Automated load distribution and monitoring ensure consistent performance with the scale you need.

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Service Control Point 

The Service Control Point puts you in charge of core value-added services. With our SCP, you can customise and adapt services to suit the needs of you and your customers. 

Define and tune service logic

WTL’s SCP supports both INAP and CAMEL protocols, enabling operators and MVNOs to manage and adapt the logic behind core services – and to innovate to deliver new VAS offers in legacy networks and integrate with new partners. 

Replace legacy solutions

The SCP provides a replacement pathway for operators that are challenged by EoL notices or roadmap gaps for core infrastructure. By selecting WTL’s SCP, you can protect your core network services and extend their life with a modern alternative to legacy platforms.

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Signalling System #7

SS7 remains fundamental to core network functions in 2G and 3G networks, as well as for roaming. Our solutions provide support for all SS7 layers and national variants.

Network-proven reliability

Our SS7 stacks are built and maintained in-house and based on more than 30 years of network expertise. We ensure robust performance at every level – from IP transport up to call control (ISUP) and application parts (INAP, MAP, CAMEL).

Adaptable and flexible 

Together with compliance to international and national standards, we also enable support for vendor specific or unusual variants, to ensure the widest compatibility and interconnection. Our solutions enable parameters to be manipulated and have been subjected to rigorous functional and performance validations – and are proven in demanding networks.

2G/3G

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Session Border Controller

The SBC is the critical interconnection interface between your network and peers. It needs to offer robust protection and traffic screening, together with session routing functions.

Effective network protection 

WTL’s SBC is built and proven for large-scale interconnection between mobile, fixed and carrier networks, providing the advanced traffic filtering and session management you need to secure your network and defend against threats while delivering legitimate traffic.

Multi-purpose

Our SBC supports multiple protocols, simultaneously, providing a comprehensive solution for session management, regardless of the interfaces presented. Manage each interconnection and independently protect each interface so you can defend your operations and your customers from external threats while ensuring effective service delivery.

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HOW OUR GSM AND UMTS SOLUTIONS HELP YOU

Connectivity, messaging, VAS and protection

Our solutions power connectivity, services, interworking and more – giving you flexible choices for your legacy networks.

Full-stack support

Built on our own, field-proven signalling stacks, our solutions have been proven at scale and offer rapid deployment and easy configuration.

Multi-vendor interop

Seamlessly insert into your network to replace legacy solutions with no disruption and with full combability with your multi-vendor environment.

Tier 1 reliability

WTL’s solutions offer the uptime and robust performance your network needs to deliver the service experiences your customers demand.

3GPP compliance

We implement and follow 3GPP standards and easily handle national or vendor-specific adaptations, for all network generations.

Core network solutions you can rely on

We power operators globally, delivering robust performance that scales to meet exceptional demands. The data speaks for itself. You can depend on WTL.

70+

Countries installed

4 Billion+

Calls handled every year

100+

Networks

6 Billion

Transactions per month

Still Have Questions About 2G/3G Core Network Solutions?

FAQs

Interested? Do you have questions? Check out some of the questions we’re most frequently asked to discover more. If you still can’t find what you are looking for, get in touch – and we’ll be glad to answer your query.

Can we maintain our legacy services with your solutions?

Yes, you can continue to run USSD, SMS and other VAS offers with our solutions, so you can support your service portfolio – but with greater flexibility and reduced costs.

Do you support local country variants of SS7?

Yes, our stacks are proven globally and we can also configure to meet local requirements and interconnection needs.

Can we support core IN services?

Yes, our SCP enables you to support your core services, as well as to support others in your portfolio – consolidating your IN / CAMEL services with a single, robust solution.

We use some proprietary versions of INAP and CAMEL. Can you help us?

Absolutely. We have expertise in implementing vendor or network specific versions of these protocols, so can definitely help.

Do your solutions scale to match my performance requirements?

Yes, our solutions are proven to deliver the processing capacity you need. We can easily dimension our platforms – and can reduce your costs due to our modern software architecture.

Can we upgrade to 4G and 5G when we need to do so?

Yes, our solution set includes all relevant functions and we can help you upgrade, step-by-step.

Can you provide technical references?

Of course. We can introduce you to peers who have experience of deploying, operating and configuring our solutions, so you can learn from them.

Let's design your network

Ready to explore what's possible for your network? Get in touch with our team today to book a consultation and get started.