DAG1000/2000 Series FXS Voice Gateway User Manual27Figure 4.8-1 FXS Parameters Configuration InterfaceFXS parameters description:Call Process Tone Hear the dial tone when pick up the phone. Choose the national standardsfrom the drop-down box. Default is the United States.Timeout for dialingWith the help of dialing timeout, you can limit the time while users typingthe digits from an extension. If the timeout expire while the user is typing inthe extension then DAG will consider the extension as complete and it willtry to send to SIP server. Default value is 4 secondsTimeout foranswer(Outgoing call)This timer set how long the caller party waiting when makes outgoing callon extension.Timeout foranswer(Incoming call) This timer set how long the phone sets ringing when get incoming callSend Polarity Reversal Enable polarity reversal to billing.Detect Hook flashA protruding button where putting the receiver boards, called Flash. Alwayspress is hang up, pick up the receiver, the fork lift machine from reed called,by hand clap called "Hook flash". Hook flash is a process that put the flashfast by pressing and let go. In essence is to cut off the dc access about 80to 200ms. Then switches don't think it's hang on, but keep the call, takingsome other operating. The typical application of hook flash is the telephoneswitchboard. When need to transfer the call to other extension, thentelephone hook flash to transfer the call.CID Type There are DTMF and FSK, General for the default.Message Type The call display formats SDMF and MDMF, General for the default