Telcos have to move from a bit-pipe model to a revenue-generating services model.
3GPP evolved its mobile network architecture to meet these requirements and introduced the
IP Multimedia Subsystem (IMS) to enable Web-like services and business model in the telephony world.
IMS introduces architecture and new protocols allowing the Telecom carriers and content providers to bring attractive new services to their customers.
Such protocols are namely SIP for Signalling and Diameter for Authentication, Authorization and Accounting (AAA).
In the IMS network and services architecture, Diameter and SIP are natively implemented:
- In IMS network elements supplied by Network Equipment Providers (NEP), like Home Subscriber Server (HSS), Call Session Control Function (CSCF), Media Resource Function (MRF).
- In Telecom Application Servers (AS) that can be provided either by NEPs, dedicated telecom to software publisher or custom developed with Java application servers.
- In the IMS nodes close to the OSS and BSS functions dealing with authorization and charging (mediation, rating, billing, policy server,…).

IMS Domain
MARBEN™ Diameter addresses the needs of the various IMS market players by providing them with a key software component of the IMS architecture.
MARBEN™ Diameter is a fast, robust and efficient implementation of the Diameter Protocol and the Cx, Sh, Rf, Ro CCA Diameter applications.
It encompasses both the Authentication/Authorization and Accounting/Charging functionalities of the Diameter protocol (see product features).
It is aimed at the IMS equipment and IMS application markets as well as the fixed-mobile convergent networks where IMS architecture and solutions tend to spread.
MARBEN™ Diameter is a ready to integrate component that will allow you to rapidly tick the Diameter conformance item of the IMS architecture requirements.
Its high level object oriented APIs make it possible to add Diameter Authorization or Accounting with minimal development effort.
It will help you to considerably reduce the time to market of your IMS product which is a definitive advantage in the fast moving and highly competitive IMS market.