Service providers with legacy TDM networks face substantial challenges and risks due to the rapid aging of 25 to 30 year old legacy TDM switches, ongoing line loss, and IP-based competitive alternatives. Widely-deployed in the smart cores of hundreds of operator networks, the C15 Call Session Controller, part of GENBAND’s Call Controller portfolio of innovative transformation products, reduces these risks by providing a critical bridge to revenue growth and new IP services.
The C15 supports a wide variety of standard protocols, interfaces, and features to concurrently enable both IP and legacy services for Class 5 replacement, including HD voice, Centrex, web portal, mobility, video calling, call logging, integrated voice mail, AMA collection, IP PBX, LNP, E911, and CALEA. The C15 is also fully SIP and IMS-capable with integrated SIP call session control, session border control, and TDM gateways for seamless inter-working between VoIP and TDM subscribers.
GENBAND's C15 call controller enables carrier service providers to offer advanced features, including local number portability, directory number hunt, and end office or Access Tandem operation.
The C15 reduces CapEx and leverages existing fixed access by connecting to line frames and peripherals of switches such as DMS 10 and DMS 100, as well as MSANs and other IP-based access, enabling operators to effectively discard their TDM switch cores and move customers to the SIP and IMS services cloud. The C15 provides an easy back office transition, supporting legacy operational interfaces. A convenient Graphical User Interface allows quick and easy provisioning, and a robust GUI-based portal allows subscriber self-care and advanced voice application control.