How to differentiate the reporting mode of the MODEM events in the UA5000?
The event reporting modes for the MODEM flow in which the SoftSwitch participates are:
1. Immediate reporting: The host immediately reports to the SoftSwitch the MODEM related events, such as ANS, ANSAM, ANSBAR, and ANSMBAR once the host receives these events.
2. Buffer reporting: The host does not report the ANS, ANSAM, ANSBAR, and ANSMBAR events immediately after receiving the events. It waits for a while and reports the events till the fax event V21flag is not reported upon timeout. This is to allow the low-speed transmission (fax mode to the host) when the high-speed fax service (MODEM mode to the host) negotiation fails.