3.2.4 Higher-Layer Triggered Events

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Events can be triggered from the higher-layer to disconnect a PPTP call session. When the PAC receives a request to disconnect the PPTP call session from the higher-layer, the PAC MUST send a Call-Disconnect–Notify message ([RFC2637] section 2.13) to the PNS, as specified in [RFC2637] section 3.2.4.1. If no more call sessions exist with the PNS, the PAC SHOULD close the control connection with the PNS by sending the Stop-Control-Connection-Request message ([RFC2637] section 2.3) to the PNS, as specified in [RFC2637] section 3.1.1.