ABSD Billing

New Data protocol messages

CDC_STATE <br\> CDC_CMD

Examples: System setup: <br\> AudioCodes SIP gateway, trunk line 1 programmed with number 0047. <br\> 0047 programmed in AlphaCom as feature 83 global number with flag for Call Detail Control.<br\>

WCSD programmed with pin code "12" for user "101" <br\>

User "101" dials extension "0047"

AMC                                                         WSCD
CDC_STATE (START,       REF, 101, 0047) ----->             (Starts new billing process)
CDC_STATE (PIN_DIGIT,   REF, 101,    1) ----->             (Verify digits)
CDC_STATE (PIN_DIGIT,   REF, 101,    2) ----->
(Send INVITE to SIP GW)                 <-----              CDC_CMD (REF, OK)   (Pin OK)
(SIP-trunk dial tone)
CDC_STATE (ESTABLISHED, REF, 101, 0047) ----->             (Sip connection established) 
CDC_STATE (TRUNK_DIGIT, REF, 101,    6) ----->             (Collect digits for billing information)
CDC_STATE (TRUNK_DIGIT, REF, 101,    4) ----->
 digits....
....
CDC_STATE (ACTIVE,      REF, 101, 0047) ----->             (Received every 10 sec as a heartbeat)
.....
CDC_STATE (DISCONNECT,  REF, 101, 0047) ----->             (Conversation disconnected)