Dialogic 6.2 Manuale Utente

Pagina di 441
Loop Start Signaling
November 2009
310
event = 1 in the IISDN_ROBBED_BIT_DATA structure. This 
message is sent after the fixed pause timer expires. When the timer 
expires, the host receives an L3L4mSEIZE_COMP message if send_
seize_comp_event = 1 in the IISDN_ROBBED_BIT_DATA structure. 
FXS ground start supports transmitting digits other than dial pulse 
digits. If called_party_digits = 0 in the L4L3mCALL_REQUEST that 
started the call, the module waits in outdialing state indefinitely. 
During that time, another device connected to the Brooktrout 
module over the TDM bus (such as a digital tone generator) is used 
to outpulse digits to the network. 
After the digits are transmitted, the module waits for an answer 
timer to expire (if timed_answer_supervision = 1). When the timer 
expires, the host receives an L3L4mCONNECT indicating the call is 
connected.
 shows how the module makes an outgoing call over an 
FXS ground start trunk.
Call Teardown Processing 
In this mode, an incoming call teardown cannot be detected; the host 
must determine when the call is inactive (that is. no data) and 
initiate an outgoing call teardown. For an outgoing call teardown, 
refer to 
.