Transform Switching Infrastructure To Support VoLTE and IMS Initiatives
Gain your competitive edge and shed yourself of the limitations of your end-of-life SS7 TDM or SoftSwitch technology. Transform your Routing and Switching infrastructure with proven confidence to support VoLTE and IMS initiatives with the Enghouse ControlSwitch System. The ControlSwitch System is an open, carrier class, fully virtualized and Cloud ready solution for public and private cloud deployments.
Transform Your Legacy Switching Infrastructure to IMS and VoLTE
Service providers around the globe have deployed the ControlSwitch System to replace their aging and end-of-life legacy softswitch or TDM switching infrastructure. The ControlSwitch System Class 4 softswitch scales from a few thousand ports to networks with over one million ports expanding as your demand grows and eliminating the concern of having to undergo costly forklift upgrades like some other vendor approaches. And since it is an open softswitch solution, the ControlSwitch System is field proven to work with an array of other vendors’ media gateways such as from Cisco or AudioCodes to help operators leverage their existing legacy investment.
The ControlSwitch System includes Diameter protocol support for charging and postpaid applications as well as support for CAMEL protocol based services such as mobile number portability. The operationally friendly platform makes it easier to centrally manage multiple ControlSwitch System instances across the globe and reduces the time and effort to update even the most complex routing tables. Reduced footprint configurations for the ControlSwitch System gives service providers with more modest initial traffic requirements, a future-ready, cost-effective, carrier-class switching platform with advanced features to help differentiate their VoIP offerings.
Service providers have the flexibility to architect their network with true geographic diversity. That means high availability and disaster recovery as well as increased operational efficiency since you can manage your Class 4 infrastructure as a single entity.
Migrate to IMS/VoLTE With Confidence
Service providers needing best-in-class connectivity to both IP and TDM networks can deploy the ControlSwitch System to act as both the Media Gateway Control Function (MGCF) and Breakout Gateway Control Function (BGCF) in next generation IMS and VoLTE networks. I-Gate 4000 PRO and EDGE Media Gateways provide the bearer plane handling and BorderNet™ Session Border Controllers can be integrated operationally with the ControlSwitch System to provide IP-to-IP connectivity for Interconnection Border Control Function (IBCF) applications. The ControlSwitch System is part of Dialogic’s comprehensive portfolio of IMS transformation solutions to help you take your network to the next level.
Key Features
Leverages sophisticated in-house bandwidth and IP packet rate optimization technologies, while preserving the quality and reliability of the original VoIP traffic
Enables convergence of disparate networks and multi-protocol support
On-the-fly service programmability and extensibility
Permits customized solutions
Single point of management that includes Call Detail Records (CDR) and call tracing
Supports network-wide deployments
Fully decomposed “all-software” architecture
Deployable in private and public clouds
Geographic redundancy
Provides high availability and disaster recovery
Integrated security solution
Allows secure VoIP interconnects
Gateway Mobile Switching Center (MSC) functionality
Enables optimal routing in environments that include wireless networks and MVNOs
Designed to avoid forklift upgrades
Provides investment protection
IP protocol, SS7 protocol and IMS | VoLTE interface support
Any-to-any interconnection of mobile and service provider and IPX operator networks
Media Gateways
Media gateways operating under CloudSoftswitch and MGCF provide high-density media processing for legacy and IP voice environments, while centralised call control and routing remain cloud-based. This separation allows operators to optimise bandwidth usage, preserve call quality, and maintain service continuity across diverse transport networks.
The gateway layer supports advanced voice processing and signalling functions required for carrier-grade voice services, including PSTN interworking, IMS MGCF scenarios, and large-scale Class 4 applications.
Dialogic I-Gate 4000 Media Gateways
Dialogic® I-Gate® 4000 Media Gateways are designed for telecom operators seeking a competitive advantage by moving to an operationally efficient and service-centric IP network.
I-Gate 4000 Media Gateways, which flavour? | I-Gate EDGE | I-Gate PRO |
| HD Voice Services | ✓ | ✓ |
| Optimization of VoIP Links | ✓ | ✓ |
| IMS MGCF IP-to-IP and IP-TDM Media Interworking | ✓ | ✓ |
| High Density Class 4 Applications | ✓ | |
| Medium to Small Scale Applications | ✓ |
I-Gate 4000 Media Gateways Overview
I-Gate® 4000 PRO and EDGE Media Gateways redefine the modern gateway with an open and reliable platform compatible with a wide array of vendor switching technologies. I-Gate 4000 Media Gateways feature unparalleled voice quality, reliability, IP-to-IP transcoding, and support for newer voice services to give telecom operators a competitive advantage and keep pace with their IP transformation needs.
I-Gate 4000 PRO and EDGE Media Gateways provide the latest capabilities to help you expand your services and lower your costs:
I-Gate 4000 Media Gateways can help modernize your network and cost effectively cap or replace your end-of-life legacy media gateway technology with a reliable solution to help you get the most out of your existing infrastructure without compromising network availability or voice quality. I-Gate Media Gateways are an open, supported solution that service providers can use to replace their existing end-of-life gateways from vendors like Cisco.
I-Gate 4000 PRO and EDGE Media Gateways along with the Dialogic® ControlSwitch®™ System softswitch and BorderNet™ Session Border Controllers are part of Dialogic’s comprehensive portfolio of IMS transformation solutions to help you take your network to the next level.
Key capabilities include:
Bandwidth optimisation originally proven in circuit-switched networks, extended to VoIP environments to reduce transport costs without degrading call quality.
Packet voice quality aligned with established PSTN expectations, supporting consistent user experience during IP migration.
Advanced codec handling and media processing designed to protect voice quality under real-world network conditions.
High compression ratios that allow significant bandwidth reduction, supporting efficient scaling of voice traffic.
Reliable transport of SS7 and related signalling protocols including PRI, QSIG, and CAS, even in impaired network conditions.
Centralised signalling gateway models that support resilient architectures and efficient network topologies.
High-efficiency signal detection and processing for voice, fax, modem, and video calls.
High call completion rates across mixed network environments, supporting revenue continuity for legacy and IP services.
Carrier-grade availability levels designed for continuous operation in national and international voice networks.
Standards-based interfaces that allow integration with a wide range of switching and control platforms.
Support for multiple transmission infrastructures, including terrestrial, radio-based, and satellite deployments.
Resources
Featured Document
The barriers are coming down swiftly to any voice roaming alternative other than VoLTE—so now is the time to get ready, if you haven’t already made plans to do so. Most operators plan to move all voice services to a single core, essentially eliminating legacy CS. Put simply, this means that VoLTE—and, in time, VoNR—will inevitably dominate voice services going forward.
FAQs
Cloud SoftSwitch
Cloud SoftSwitch and MGCF is a cloud-ready call control platform that manages routing, signalling, and policy for carrier voice networks. It supports Class 4 switching, IMS MGCF functions, and VoLTE interworking across IP and legacy environments.
Cloud SoftSwitch acts as the control layer, while media gateways handle media processing. Cloud SoftSwitch controls call setup, routing decisions, failover, and policy enforcement, and media gateways execute transcoding and media transport.
No. Cloud SoftSwitch does not replace media gateways. It replaces legacy switching control by centralising call control in software, while media gateways remain responsible for media handling and interworking.
Separating control from media allows operators to scale, modernise, and virtualise call control independently. Media gateways can remain close to traffic flows, while Cloud SoftSwitch operates centrally in cloud or virtualised environments.
Yes. Cloud SoftSwitch and MGCF support standards-based control of existing and third-party media gateways, allowing operators to retain deployed hardware while modernising the voice core.
Cloud SoftSwitch provides MGCF and breakout control functions that enable VoLTE and IMS cores to interwork with legacy PSTN and mobile networks through media gateways.
Yes, if call control, routing, or service logic needs modernisation. Media gateways handle media, but Cloud SoftSwitch provides centralised intelligence, visibility, and control across the voice network.
Mobile operators, fixed-line carriers, MVNOs, international voice providers, government networks, and critical infrastructure operators commonly use this architecture to support mixed legacy and IP voice environments.
Yes. Cloud SoftSwitch is designed for virtualised and cloud deployments, supporting private cloud, public cloud, and hybrid environments while controlling distributed media gateways.
Cloud SoftSwitch manages routing and policy across IP and legacy domains, while media gateways perform IP-to-TDM conversion. This enables phased migration without service disruption.
Yes. Cloud SoftSwitch and MGCF support large-scale Class 4 switching and international voice transit, with media gateways handling high-density media processing.
Centralised control allows dynamic rerouting, failover, and traffic redistribution across media gateways and sites, improving availability and operational control.
Yes. Media gateways and Cloud SoftSwitch together support legacy interconnect, emergency services, and regulatory voice requirements while enabling IP migration.
