The Anatomy of a Deepfake Call
Capture
A few secs of public audio
Clone
TTS AI model (sub-$50/ month)
Spoof
Caller ID looks legit
Pressure
Urgency, authority, money
Protection Delivered from Inside the Phone Network
- Every call already passes through a service provider’s voice infrastructure, including session border controllers (SBC) at the edge of the voice network.
- Ribbon uses the SBC as a gatekeeper to monitor every call and reject or halt deepfake calls.
- Ribbon’s Call Trust® – Deepfake Detection analyzes the media stream to look for indicators of deepfake audio, instructing the SBC to insert an immediate warning when a potential threat is detected.
A typical Call Trust interaction
Deepfake Threats – Business, Personal
Protecting Our Most Vulnerable Citizens
Older members of the community are the easiest targets
Globally, older members of our community hold the largest share of wealth. They are also the least prepared for these deepfake schemes. Social engineering is already effective; now it’s possible to impersonate trusted friends, family members, and caregivers.
Ribbon’s Call Trust - Deepfake Detection works transparently. Nothing to install, no training, just a simple notification that the caller is not real, with the option to disconnect the call. Ideal protection, delivered to any telephone number.

A Service Worth Paying for…
The news is full of headlines
Businesses and individuals have to protect themselves
Potential financial loss and, for businesses, reputational damage will require organizations and individuals to act. Deepfake attacks are testing the trust that voice communications depend on. Only protecting individual applications leaves gaps attackers can exploit.
Service Providers can deliver added value
- Differentiate voice services — offer protection against emerging AI-driven voice threats.
- Create new services — package protection within premium or managed security offers.
- Strengthen customer trust — deliver security and fraud prevention.
- Protect high-risk roles — add safeguards for executives, finance teams, help desks, and contact centers.
- Support layered security — complement identity, authentication, and fraud-prevention controls.
Ribbon Synthetic Voice Detection
Consistent Threat Protection
Protection built into the voice network
Any endpoint
POTS, PBX, UC and contact centers
No app or API dependency
Consistent experience, no user training, no IT deployment effort
Any language
Localized audio prompts for each market

The Ribbon Difference
Ribbon has decades of experience helping Communications Service Providers and Enterprises protect their networks from cyber attacks and fraud attempts. We’ve led the way in delivering Call Trust services to quarantine suspect phone numbers and users. We’ve built analytics tools to detect fraudulent behavior and delivered STIR/SHAKEN attestation. Call Trust – Deepfake Detection builds on this foundation.
Seasoned Ribbon R&D teams build our solutions, and a global services organization backs them, with extensive experience designing, deploying, and maintaining some of the world's largest communications networks.
Ribbon's development and operations are independently certified to standards directly relevant to carrier-grade voice security:
- GSMA NESAS — covers Ribbon's SBC and PSX solutions and secure development lifecycle — the same components Call Trust runs on.
- ISO/IEC 27001:2022 — Information Security Management covering Cloud & Edge and IP Optical customer support, worldwide.
To learn how Call Trust – Deepfake Detection can protect individuals and organizations, contact us today.




