The
supports optionally dropping a received initial INVITE requests without generating any reply (including a 100 response) based on the following algorithm:
- userPart of Request-URI matches a registration RCB:
- If hostpart of Request-URI matches the hostpart of the REGISTER Contact used for RCB, continue normal processing.
- Otherwise, silently drop the initial INVITE
- userPart of Request-URI does not match a registration RCB:
- If userpart of the Request-URI matches a PSX routing label, continue normal processing.
- Otherwise, silently drop the initial INVITE
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