Dialogic 6.2 - Manual (Page 324)

ISDN Call Processing Overview
November 2009 324
3. The network responds to the DISCONNECT with a RELEASE
message.
4. The module generates two messages upon receipt of the
RELEASE:
Š RELEASE COMPLETE message to the network, indicating
the call has been cleared
Š L3L4mCLEAR_REQUEST message to the host, indicating
the call has been disconnected
Figure 50. ISDN Call Clearing - Initiated by Module
Network Module Host
RELEASE
L4L3mCLEAR_REQUEST
DISCONNECT
L3L4mCLEAR_REQUEST
RELEASE COMPLETE