When Privacy Is Non-Negotiable, This Is the Setup We Deploy

Some of the most sophisticated companies we work with demand total control over their data.
They want real-time performance, without long-term retention.
They want the benefits of voice AI, minus the compliance headaches.

And they want to be sure that their customer information never becomes a liability.
Here’s how we make that happen.

Why Companies Ask for Zero Retention
For businesses operating in heavily regulated industries, data privacy is non-negotiable.

It’s not just about compliance, it’s about risk management, customer trust, and operational control.
In legal, financial, healthcare, and enterprise sales settings, long-term data storage can become a liability. That’s why some of our most advanced builds include no persistent storage of sensitive information.

And it’s all made possible through Retell’s deep configuration options.

What you need to know is that Retell.ai by defualt will store the following.

• Call logs

• Transcriptions

• Call recordings

• Caller id for inbound call

• Callee id for outbound call

• Knowledge base retrieved contents logs

• dynamic variables

• metadata

1. Opt-Out of Sensitive Data Storage
This flagship feature disables all persistent storage of:

• Call recordings

• Transcriptions

• Call logs

• Caller IDs

Retell still processes this data during the call to maintain full functionality—real-time responses, AI understanding, dynamic flows—but wipes it after 10 minutes. This creates a zero-retention architecture that aligns with strict internal security policies and external compliance frameworks.

2. Secure URLs with Time-Based Expiration
If access to recordings is temporarily required, Retell generates secure, cryptographically protected URLs that expire after 24 hours.

These links self-destruct after the expiration window, removing the risk of accidental sharing or unauthorised access. It’s a practical layer of security for businesses that need short-term traceability without long-term exposure.

3. Webhook-Based Real-Time Data Access
This is the most powerful configuration.

Instead of storing any data, Retell streams real-time data to your systems using webhooks—during the call itself.
Call summaries, agent output, and transcriptions (if needed) are delivered directly into your CRM, ERP, or backend infrastructure.

In this mode, recording URLs expire in just 10 minutes, giving you full visibility without long-term data retention.

Where This Configuration Shines

• Healthcare & Telemedicine
  HIPAA compliance is complex. This setup allows patient calls to be handled securely without retaining sensitive health data, while still offering live triage, appointment scheduling, and symptom capture.

• Financial Services
  Whether handling loan applications, account queries, or KYC verification, real-time access via webhooks and ephemeral URLs gives teams what they need—without exposing personal or transactional data long-term.

• Legal Services
  AI agents can triage, book appointments, and surface information without violating attorney-client privilege. The zero-storage model keeps interactions confidential and off-record.

• Enterprise B2B Sales
  Sales ops teams can gain insights and push data into CRM tools without storing sensitive prospect information. Great for RFP calls, compliance-heavy industries, or global rollouts with varying privacy laws.

Built for Teams Who Can’t Afford to Slip

If you’re in an industry where a single misstep with data could cost you a client, a lawsuit, or a licence, then this setup wasn’t just built for compliance, it was built for you.

You get the speed, efficiency, and scalability of AI voice
Without the headaches of retention policies, breach notifications, or reputation damage.

• Your patients get quicker answers without compromising privacy.

• Your clients get faster service without risk to sensitive details.

• Your team stays responsive, efficient, and fully auditable without storing what shouldn’t be stored.

In short, this model lets you adopt voice AI on your terms, without asking your legal team to look the other way.

Need to prove to your board that AI can be both smart and safe?
We’re already doing it. Let’s configure it for your business.