What Is SRTP?

Protecting a media stream

SRTP applies security protections to RTP media and related control traffic. Its design can provide confidentiality, message authentication and replay protection under the configured security context. Those functions concern the media packets and their endpoints. They are different from encrypting the signaling that arranged the session or controlling access to a later recording.

The distinction matters in a browser-to-phone workflow. One segment can use protected media while another passes through a gateway or a telephone network with different handling. A dashboard showing SRTP on the rep's connection does not automatically certify every hop to the prospect. Describe the protected segment and terminating systems rather than applying an unsupported end-to-end label to the entire call.

Include key and endpoint context

A security profile needs appropriate key establishment and endpoint configuration. The acronym alone says little about how a particular deployment manages them. Use the provider's current supported procedures and identify where encryption terminates. Avoid copying a protocol name from a feature table into a security review without confirming that the planned calling route actually uses it.

Separate transit and stored content

A call recording, transcript or AI recap can remain after the live stream ends. SRTP does not determine who can access those artifacts, how long they are retained or whether an export is protected. Review the approved storage and access path separately. A protected live connection can still feed an overly broad recording permission if the later workflow is not governed appropriately.

Test the real configuration through the provider's documented diagnostic and security evidence, using controlled calls. Keep the route and observation time attached to the result. SRTP is a useful media-security building block, but it does not prove contact permission, prevent recognition errors or establish that the person answering is the named prospect. Those conclusions belong to separate evidence and operational checks.