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Mavenir's Convergence Telephony Application Server empowers operators to transition their mobile voice and Multi Media (MMTEL) communications to any SIP or 3GPP IMS-enabled access type, e.g. LTE, WiFi, HSPA, etc. Key services supported by the Convergence TAS are Mobile VoIP (Voice over WiFi), Voice over LTE (VoLTE), Femto Services and Video Calling. The Convergence TAS is a scalable carrier-grade server based on Mavenir's mOne Convergence Platform.
The Convergence TAS is 3GPP TS 24.229 [1] compliant IMS MMTEL Application Server, acting as a back-to-back user agent (B2BUA) for all SIP dialogs. The TAS is also GSMA IR.92 compliant, which defines the IMS profile for VoLTE deployments. Mavenir's innovations have uniquely equipped the Convergence TAS to offer service parity and synchronization with the CS network, enabling a consistent service to end users regardless of the access type and service network. At the same time, the C-TAS offers a rich suite of new services and capabilities to IP clients. The TAS provides the following high level functions:
- Call control for voice and video basic calls and conferences;
- 3GPP compliant support for MMTEL supplementary services;
- Various interfaces towards the operator's User Data Repository (UDR) and HLR for supplementary service storage, retrieval, query for subscriber location, call redirection and synchronization between IMS and the CS domain network;
- A standards compliant Basic Call State Model (BCSM), CAP, 3GPP2 WIN and INAP CS2 interfaces for support of CAMEL phase 2, phase 3 and INAP services towards an operator's existing SCPs;
- Support for multi-device services, allowing a subscriber to have both CS domain and IMS/SIP clients sharing a single MSISDN;
- In the Femtocell deployment architecture, the Convergence TAS also supports MAP or IOS messages carried over SIP to support services and mobility in the Femto or Pico cell coverage zones.
The Convergence TAS interacts with the core IMS component, S-CSCF over an ISC interface. The Mavenir C-TAS can be deployed in a standalone configuration with any 3rd party IMS core or bundled with Mavenir IMS core enablers (I/S-CSCF) on the same platform to offer a cost-effective end-to-end IMS voice solution. Bundled with Mavenir’s innovative network-based ICS solution, operators can also connect directly with the IMS Voice core with 2G and 3G access, effectively eliminating the need for legacy MSC from the mobile network.
All Mavenir products, including application servers and gateways, are deployed on ATCA-based, award winning, Mavenir mOne Convergence Platform.
The Mavenir C-TAS is complemented by industry leading partner components including the Session Border Controller and Proxy CSCF (SBC / P-CSCF), Media Gateways (MGW) and Professional Services to provide a turnkey offer. Read more about our partners.
