Grandstream Networks UCM6208 - Srtp; Figure 8: Enabling SRTP

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UCM Security Manual
SRTP
SRTP is supported on UCM to secure RTP audio stream during the call. By default, it’s disabled. To use it,
please configure under extension configuration dialog“Media” tab when creating/editing an extension. If
SRTP is enabled, RTP data flow will be encrypted.
Figure 8: Enabling SRTP
As shown above, users have two options while enabling SRTP under extension parameters:
▪ Enabled and forced: On this case, the extension does support SRTP for secure audio and doesn’t
allow any calls without SRTP.
▪ Enabled But Not Forced: The extension does support SRTP, but can allow negotiation to setup
calls without SRTP in case the other end doesn’t support it.