Robocalls and telemarketing calls are currently the number one source of consumer complaints at the FCC. What was once a nuisance has become a plague to U.S consumers receiving billion robo-calls every month.

To overcome this influx of unwanted calls from the service providers network, Ribbon’s solution supports the  STIR (Secure Telephone Identity Revisited) and SHAKEN (Signature-based Handling of Asserted information using toKENs) standards.  The key behind this solution is to ensure every SIP-signaled call has a certificate of authenticity attached to it — a kind of digital signature — that allows you to once again trust your caller ID.

SBC and PSX for Caller Authentication and Verification 

The Ribbon STIR-SHAKEN solution includes our award winning SBC and PSX platforms that have been validated on its effectiveness of the caller authentication standards (“Secure Telephone Identity (STI) Test Plan” (TLT-2018-00010), and Authentication and Verification Services)developed by the Internet Engineering Task Force (IETF) and ATIS. 

In this STIR-SHAKEN solution, the Ribbon SBC will generate and pass an identity header/signature to an authentication server via the Ribbon PSX.  The PSX will receive verification of the signature and pass that back to the SBC. The SBC has flexible handling of error conditions, e.g.  “reject the call”, “continue with the call”, “continue with the call and remove Identity header” if signature verification fails.  

Although several providers and third parties offer call blocking and caller identification verification products, there is no ubiquitous solution that spans wireline and wireless communication networks.  In order to address these concerns, the Service Providers are focusing their efforts across three key areas:  source authentication as well as network and consumer blocking tools. Ribbon is leading the way with advanced solutions to protect consumers from unwanted calls and give them more control over the calls and texts they receive.

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