IP Multimedia Subsystem (IMS)

Implementing a next-generation IMS network can be a costly and complex undertaking. Ribbon's IMS solution accelerates the deployment of IP Multimedia Subsystem networks by eliminating expense and complexity.  The solution helps mobile, fixed and cable network operators move up the value chain, stave off competitive threats and boost margins by offering rich communications services that blend voice, video, messaging and presence.  

Multiple IMS Application Support

The Ribbon IMS solution set includes carrier grade IMS core, access, and interconnect elements for fixed, cable or mobile VoLTE networks. It supports multiple applications including media transcoding with Enhanced Voice services (EVS) support in the core and at the edge, session border control, centralized policy and routing, and graceful network migration strategies that protect and extend previous investments and minimize service disruptions. Ribbon offers field-proven network elements, experienced business partnerships and global professional services to ensure a successful and profitable IMS rollout.

IMS Solution with best in class elements

IMS components include P-CSCF, AS, AGCF, AGF, MGCF, BGCF, IBCF, BGF, TRF, TrGW, MRFC, MRFP, DRA and IMS-MGW. Ribbon IMS elements offer flexible deployment options that can run on network appliances, or in virtual and NFV telco cloud environments.

IP Multimedia Subsystem (IMS) Advantages

  • Best-in-class session border controllers, advanced media software, application servers, call session controllers, border gateways, and access and trunking media gateways
  • True services convergence with IMS support for all broadband and narrowband customers
  • Seamless IMS migration path for customers on legacy networks
  • Industry-leading solutions and world-class business partnerships accelerate time-to-market and foster innovation
  • Highly experienced professional services team has deployed hundreds of millions of VoIP ports and executed tens of thousands of TDM-to-IP network transformation projects 

Related Products

Application Server for Service Providers

Telephony Application Server for UCaaS business services and residential VoIP

C20 Call Session Controller

Carrier grade, intelligent, and advanced call session control platform for voice and multimedia

C3 Call Session Controller

Intelligent multi-application call controller and media gateway/software control platform

Centralized Policy and Routing (PSX)

Routing and policy management for an entire network, scalable to millions of subscribers

G5 Line Access Gateway

Enables revenue growth & savings by linking TDM customers to mobile, IMS, and SIP-based services

G6 Universal Gateway

Provides the intelligent interworking of signaling, and media to access trunks

G9 Media Gateway

Enable any-to-any switching across wireless, wireline, access, core, TDM, and IP networks


Proactive monitoring, troubleshooting and management solutions


Virtual and cloud-based deployment for the “gold standard” in network policy and routing management

Session Border Controllers for Service Providers

Ribbon has an award-winning and field-proven portfolio of SBCs to meet every need

Ask Us Anything!

Ribbon's team of professionals are ready to answer your questions, guide you to the right solution or help you with your network design.