What does HRESULT 0x80EF0192 (RTC_E_STATUS_CLIENT_PAYMENT_REQUIRED) mean?

RTC_E_STATUS_CLIENT_PAYMENT_REQUIRED

What RTC_E_STATUS_CLIENT_PAYMENT_REQUIRED means in RTC

This code belongs to a peer, proxy, registrar, or gateway returning a specific SIP response to the RTC transaction: the legacy SIP endpoint returned the reserved Payment Required status. Treating it as a generic RTC failure loses the state needed to choose a safe next action.

For correlation, retain 0x80EF0192 in the RTC SIP-status facility carrying status 402 together with this result; generic HRESULT text can otherwise hide the protocol family and the exact RTC branch.

Evidence should show that you capture the complete method, responder product/version, and any extension headers or body defining local semantics; the diagnostic distinction is that RFC 3261 reserves 402 without standard operational behavior, so the reason phrase alone is insufficient.

Protocol and object state

How to prove the condition

1. Start from 0x80EF0192 and this result, then find the method/event pair that first exposed it.
2. To verify this, capture the complete method, responder product/version, and any extension headers or body defining local semantics.
3. Keep the analysis at the right boundary: RFC 3261 reserves 402 without standard operational behavior, so the reason phrase alone is insufficient.
4. After you treat it as an extension-specific terminal response unless the deployed service contract defines a safe next step, repeat the smallest reproducer rather than restarting the entire application environment.

Minimum incident record

• Code-specific proof: capture the complete method, responder product/version, and any extension headers or body defining local semantics.
• Owning object: status-specific headers.
• Wire evidence: retry or alternate-target decision.
• Lifecycle state: request method and Request-URI.

Actions that do not address this condition

• Do not retry every 4xx or 5xx response with the identical request.
• Do not show a reason phrase as trusted server identity or authorization evidence.

Correct application response

To correct this, treat it as an extension-specific terminal response unless the deployed service contract defines a safe next step.

Example: A proprietary gateway uses 402 to signal an account-billing condition; the application routes it to gateway-specific handling.

Nearby failure modes

For this HRESULT, 403 has standard authorization-denied semantics; 402 depends on the deployed extension; the neighboring results below require different control-flow decisions.

Technical references

• Microsoft RTC return constants.
• SIP response semantics.