Mohammad: I trace the packet with ethereal and find ser will send "INVITE" to callee. The "100 Trying" and "180 ringing" will be send from callee to ser if callee receives "INVITE". And the callee will respone a "200 OK" after callee hangup. I think this "200 OK" is the callee hangup at this moment. On 4/28/05, Mohammad Khan <info(a)beeplove.com> wrote:

really? it is an interesting result. i think i will do the same testing follow your steps, thank you very much, Mohammad. On 4/28/05, Mohammad Khan <info(a)beeplove.com> wrote: >Yes, I also did a ngrep capture and took a close look. >But what is the sip_method here? (when it send 200 OK) >How do you capture it to acc? > >I did another experiment. >I called from UA1 to UA2 . and let UA2 rang for half minute. >And then UA2 picked the call and after couple of seconds disconnect the >call. >After this I found the time difference between INVITE 200 and ACK 200 is >not half minutes. >Strange thing is, they both have same time and same timestamp. And BYE >have time that tells call duration was only few seconds > > >Thanks, >Mohammad > >Charles Wang wrote: > > > >>Mohammad: >> >>I trace the packet with ethereal and find ser will send "INVITE" to callee. >>The "100 Trying" and "180 ringing" will be send from callee to ser if >>callee receives "INVITE". >>And the callee will respone a "200 OK" after callee hangup. I think >>this "200 OK" >>is the callee hangup at this moment. >> >>On 4/28/05, Mohammad Khan <info(a)beeplove.com> wrote: >> >> >> >> >>>Yes, the duration of call should be just the way you said. >>>But I am not aware about any UA can send msg back to other UA right >>>after pick up the call. >>> >>>I just use the following query to get successfull calls >>>select sip_callid from acc where sip_status=200 group by sip_callid >>>having count(*) = 3; >>> >>>If you know the way to get exact call duration, please share with me. >>>I know, the way I am doing it is couple of seconds more than the actual >>>duraion. >>> >>>Thanks, >>>Mohammad >>> >>> >>>Charles Wang wrote: >>> >>> >>> >>> >>> >>>>Hi, >>>> >>>>I think that the ACK after INVITE is only the callee(UAC) receives my >>>>INVITE and ready to start RINGING. But this time is not the really >>>>Call Start. >>>>Generally, the start time of call should be callee hangup the phone >>>>after ringing. >>>>Do you have any idea about it? >>>> >>>>On 4/28/05, info(a)beeplove.com <info(a)beeplove.com> wrote: >>>> >>>> >>>> >>>> >>>> >>>> >>>>>Actually, to get call duration, you need to use ACK and BYE (both should >>>>>have status 200). >>>>>INVITE sends an request to other party to initiate a call. >>>>>Other party send ACK with status 200 to receive the call. >>>>> >>>>>Original Message: >>>>>----------------- >>>>>From: Charles Wang lazy.charles(a)gmail.com >>>>>Date: Thu, 28 Apr 2005 02:49:42 +0800 >>>>>To: serusers(a)lists.iptel.org >>>>>Subject: [Serusers] HELP: how to get correct call duration?? >>>>> >>>>> >>>>>Hi, ALL: >>>>> >>>>>I know ser can insert INVITE & BYE records to acc table. >>>>>Maybe the timestamp of BYE record is correct but the timestamp >>>>>of INVITE is not equal to the call start(after the callee answered). >>>>>Is there any method to generate a record with timestamp when the callee >>>>>answer? >>>>>I think that it should be the callee responses "200 OK" after "100 Trying". >>>>>How to do it??? >>>>> >>>>>-- >>>>> >>>>>Best Regards >>>>>Charles >>>>> >>>>>_______________________________________________ >>>>> >>>>>