Appendix A - Call Control Scenarios
399
Advice of charge - inbound and outbound call (AT&T Service Only)Asynchronous Programming: Call disconnected by network
Application Device Driver State Firmware Network
CONNECTED
CCEV_DISCONNECT
ED<--
DISCONNECTED Charge
information is
part of the DISC
message
CALL_DISC
<--
disconnect
<--
Release
-->
cc_GetBilling(
)
-->
REL_COMP
<--
billing info
(return
immediately)
<--
cc_ReleaseCall(
)
-->
Call_Dealloc
-->
Return
<-- NULL CALL_DEALLOC_ACK
<--
Synchronous Programming: Call disconnected by application
Application Device Driver State Firmware Network
CONNECTED
cc_DropCall( )
--> Call_Disconnecte
d
--> B channel
disconnected
CALL_DISC
-->
disconnect
ed
-->
Release
<--
CCEV_DROPCALL
<-- IDLE Charge information
is part of the
Release message
CALL_CLEARED
<--
Rel_Comp
-->
cc_GetBilling( )
-->