A-level attestation on every eligible call. Included.
STIR/SHAKEN is the standard for caller-ID authentication on US and Canadian voice networks. Your attestation level directly affects whether carriers mark your calls as "Verified" or "Scam Likely" — and whether your contacts pick up.
Not all attestation is equal.
Carriers sign calls at one of three levels. Only A-level reliably passes through the downstream carrier filters that determine whether a call displays as 'Verified'.
Full attestation
VICICarrier defaultThe originating carrier knows the caller AND knows the caller is authorized to use the calling number.
Partial attestation
Not what we sendThe originating carrier knows the caller but cannot verify they own the calling number.
Gateway attestation
Not what we sendThe call enters the network from a gateway (often international). The carrier has no visibility into the source.
Attestation level drives answer rate.
Downstream carriers use STIR/SHAKEN verification as a major input to their spam scoring. B- and C-level calls are significantly more likely to be flagged.
A-level default
Every eligible call signed at A-attestation with no extra fee or configuration.
Your own cert optional
We can sign with our cert (default) or with your own STI-CA certificate if you have one.
CNAM + spam monitoring
Spam-flag monitoring across major US carriers. Portal shows your reputation over time.
Compare your current attestation level.
Send us a sample CDR with SIP-identity headers. We'll tell you exactly what level your current provider is signing at — and what you'd get with us.