RTC_E_SIP_HIGH_SECURITY_SET_TLS: meaning and diagnosis

Status / error code:		Category:

Constant name:
Source:		Operating System:
Description: Must set transport to TLS if high security mode is needed

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RTC_E_BASIC_AUTH_SET_TLS	RTC_E_PROFILE_SERVER_UNAUTHORIZED

RTC_E_SIP_HIGH_SECURITY_SET_TLS

Where the state changes: `RTC_E_SIP_HIGH_SECURITY_SET_TLS`

The useful interpretation of this result is narrower than “SIP error”; within selecting an allowed authentication method, validating the challenge realm, and establishing a protected SIP transport, it means the requested high-security RTC mode is paired with a signaling transport other than TLS.

The stored value is 0x80EE0040 in the RTC interface facility 0xEE; keep both forms in telemetry so COM error wrapping does not erase whether RTC produced an interface result, mapped a SIP response, or surfaced a PINT outcome.

Start the result investigation by having the trace record security-level setting, server transport, and profile selection; do not skip the distinction that security policy requires transport protection before any connection attempt is made.

Telemetry and packet evidence

Code-specific proof: record security-level setting, server transport, and profile selection.
Addressing context: authentication scheme and realm.
RTC callback state: credential identity without secret material.
Transaction boundary: certificate subject and validation failure.
Media or profile detail: client/server UTC time and TLS phase.

Protocol and object state

RTC area	`SIP` authentication and `TLS` identity
Condition to prove	the requested high-security RTC mode is paired with a signaling transport other than `TLS`
Objects to correlate	profile authentication method, challenge headers, realm, credential source, `TLS` certificate and tunnel
Safe corrective direction	select `TLS` and a valid server identity or reduce the requirement only through explicit policy

RTC profile rules tie some authentication methods to TCP or TLS; Basic authentication requires TLS in the legacy API contract. A certificate failure, a challenge mismatch, and invalid credentials occur at different layers and need different remediation.

Actions that do not address this condition

never record Authorization header contents or plaintext passwords.
Do not disable certificate checking or lower transport security merely to make authentication appear successful.

Step-by-step isolation

Record it and 0x80EE0040 at the first RTC method or event that returns it.
Prove the condition by ensuring the trace can record security-level setting, server transport, and profile selection.
Apply one controlled change: select TLS and a valid server identity or reduce the requirement only through explicit policy; then verify the result return value and resulting RTC state.

Recovery

The owning RTC component should select TLS and a valid server identity or reduce the requirement only through explicit policy; it should also settle or cancel its previous operation before callers begin a replacement.

Example: An application enables high security while retaining a UDP registrar entry.

Comparison with adjacent codes

`RTC_E_BASIC_AUTH_SET_TLS`	the profile allows Basic authentication without selecting the TLS transport required by RTC
`RTC_E_SIP_AUTH_FAILED`	the selected SIP authentication attempt was rejected or could not validate for the challenge
`RTC_E_SIP_AUTH_TIME_SKEW`	SIP authentication validation failed because client and server time differ beyond the accepted window

Technical references

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