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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal>I am using Mod lua for call processing on the FreeSwitch. I would like to wait for some events such as CHANNEL_ANSWER and CHANNEL_HANGUP in order to get the answer time and hangup time. Basically, something like<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Wait for event CHANNEL_ANSWER or CHANNEL_HANGUP<o:p></o:p></p><p class=MsoNormal>If (event_name = “CHANNEL_ANSWER”) then answer_timestamp = getHeader(“Caller-Channel-Answered-Time”) <o:p></o:p></p><p class=MsoNormal>If (event_name = “CHANNEL_HANGUP”) then hangup_timestamp = getHeader(“Event-Date-Timestamp”)<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>The session:getState() described in module lua gets the call state but not the channel state. For instance, ‘CS_EXECUTE’ is the channel state when it is executing a dialplan not when the call is answered. <o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Is there a way to wait for channel events such as CHANNEL_ANSWER and CHANNEL_HANGUP in order to retrieve answer and hangup timestamps for a call?<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Any input is very much appreciated.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Thanks.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Sam<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>