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SigScale OCS supports the DIAMETER applications for the 3GPP interfaces of an OCS (Ro/Gy/Wo) (3GPP 32.299), PCRF (Gx), HSS (S6a) and AAA Server (STa/SWm/SWx,S6b), The OCS function supports Session Charging with Unit Reservation (SCUR) and Event Charging with Unit Reservation (ECUR) in CS, PS and IMS domains with both centralized and distributed unit determination. Non-3GPP access is supported with for ePDG with either internal HSS or proxy over SWm SWx to external HSS.
RADIUS
The OCS acts as an authentication, authorization and accounting (AAA) server for network access servers (NAS) using the RADIUS protocol such as wireless local area network (WLAN) access points (AP), broadband remote access server (BRAS) or broadband network gateway (BNG).
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The TTLS method uses Transport Layer Security (TLS) protocol that provides for client authentication of a server, as well as secure ciphersuite cipher-suite negotiation and key exchange. The secure connection may then be used to allow the server to authenticate the client using existing, widely deployed methods such as PAP which is used in OCS.
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The Internet Protocol (IP) Detail Record (IPDR) is an industry standard exchange format for usage records within the Internet Service Provider (ISP) ecosystem. OCS generates IPDR format usage logs which may be transfered transferred with SFTP/SCP for offline processing.
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