What is Stir / Shaken?

STIR/SHAKEN is a technology designed to reduce fraudulent robocalls and illegal phone number spoofing. STIR stands for Secure Telephony Identity Revisited. SHAKEN stands for Secure Handling of Asserted information using tokens. Spam and illegal robocalls are a significant problem many communications companies are struggling to deal with as they try to protect the privacy of their customers. In 2019, phone calls were the most common way scammers got in contact with their victims.

Stir/Shaken

What specifically is STIR?


STIR is a working group within the IETF which has developed a set of Stir Shaken protocols used to create a digital signature for a call. The signed Stir Shaken sip header call includes information about the calling party and allows for verification of the signature by the terminating provider..

What specifically is SHAKEN?


SHAKEN are the standards for how STIR is to be deployed by service providers within their networks.

How could Bulk Solutions Help as a Stir/Shaken attestation service provider?

Bulk Solutions takes the complexity of Stir / Shaken away from services providers and makes available a very easy to use API to encrypt and decrypt identiy headers.

STI-AS (Authentication Service)

We will provide you the Stir/Shaken token needed to Digitally Sign your outbound calls using our Stir Shaken call authentication technology.

STI-VS (Verification Service)

This is where we decode and verify an Inbound Call's Stir Shaken Identity Header on your behalf.

Supported Systems

We support all SoftSwitches which do not have built in mechanisms to preform the STI-AS and STI-VS functions for Stir/Shaken. One such SoftSwitch is Broadworks from Cisco Systems. Our engineers are Stir/Shaken support experts and will help all Stir/Shaken vendors.

Stir/Shaken attestation service provider

Why is STIR/SHAKEN implementation so important?

5 billion+ robocalls are made each month, and research suggests that more than 40% of those calls are thought to be fraud-related.


Stir/Shaken implementionat

How does it help you?

When people can't trust that callers are who they claim to be, they stop answering even legitimate calls. Authentication built right into our solutions with no extra effort needed on your part can help ensure that customers feel more comfortable about saying hello instead of dismissing the call.

How will STIR/SHAKEN look to consumers?

Consumers should not notice any functional change to their caller ID displays, other than the ability to better trust the data they see.

How does STIR/SHAKEN implementation stop illegal robocalls?

STIR/SHAKEN uses public key cryptography and digital certificates to authenticate phone calls, similar to the way that e-commerce websites secure their traffic. Originating carriers digitally sign their calls, and terminating carriers check to see that the signatures are authentic before completing the call. Spam and illegal robocalls are a significant problem many communications companies are struggling to deal with as they try to protect the privacy of their customers. In 2019, phone calls were the most common way scammers got in contact with their victims. The Federal Trade Commission has been working to educate the public about these unwanted calls, but with mixed success. Thus Stir/Shaken has come to live.

What are Attestations?

Think of attestation levels as scores for a telephone call. They range from Good [A], Fair[B] and Poor[C]. There are three levels of verification, or "attestation", possible in the STIR protocol for Stir/Shaken attestation service providers


[A] - Full Attestation

Means the service provider knows the customer and the right to use the telephone number they are calling from.


[B] - Partial Attestation

Means the service provider knows the customer but not the source of the telephone number they are calling from.


[C] - Gateway Attestation

Means the service provider has originated the call in to the network but can't authenticate the call source.

 What is Stir/Shaken
Domestic Outbound

Let's get you set up!

Ready to integrate our STIR/SHAKEN service?

In addition, we also provide CNAM, RoboCall Mitigation, E911, SIP Trunking, 8YY services.

Have any further questions for us? Don't hesitate to get in touch with us - we're ready to support you however you need!

Call 8559060901 or email info@bulkvs.com

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