Filter
Top Products
ISDN Software Reference for Linux and Windows
372
Application Device Driver State Firmware Network
cc_AcceptCall( )
(option)
-->
Call_Alert
-->
CALL_ALERT
-->
Alerting
-->
termination of
cc_AcceptCall()
<--
ACCEPTED CALL_ALERT_ACK
<--
cc_AnswerCall( )
-->
Call_Connect
-->
*B-channel cut-
thru
CALL_CONNECT
-->
Connect-->
termination of
cc_AnswerCall()
<--
CONNECTED CALL_CONNECT_AC
K
<--
Conn_ACK
<--
* Application may connect a voice resource channel to the B channel.
Asynchronous Programming: Incoming call notification is received as an event.
cc_WaitCall( ) needs to be issued only once when the system is initialized.
Application Device Driver State Firmware Network
cc_WaitCall( )
-->
ISDN_Unblock_Ts
-->
NULL Incoming call
unblocked
<-- Set_Up
CALL_PROCEEDING
-->
Proceeding
-->
CRN assigned
CCEV_OFFERED
<--
OFFERED CALL_INCOMING
<--
cc_GetDNIS( )
(option) -->
*B-channel cut-thru
Return immediately
with DNIS <--
cc_GetANI( )
or
cc_ReqANI( )
(option) -->
Return immediately
with ANI <--
cc_CallProgress
()
(option)
-->
Call_Progress
-->
CALL_PROGRESS P1=8
(in-band information
is now available) --
>
Progress
-->
No response from F/W
to driver
cc_AcceptCall(
)
(option) -->
Call_Alert --> CALL_ALERT
-->
Alerting
-->
CCEV_ACCEPTCALL
-->
ACCEPTED CALL_ALERT_ACK
-->
cc_AnswerCall(
)
-->
Call_Connect
-->
*B-channel cut-thru
CALL_CONNECT
-->
Connect
-->