O Venres, 5 de Agosto de 2011 21:20:37 Don Kelly escribiu: > -----Original Message----- > From: asterisk-users-boun...@lists.digium.com > [mailto:asterisk-users-boun...@lists.digium.com] On Behalf Of Jorge > Barreiro Sent: Friday, August 05, 2011 12:35 PM > To: Asterisk Users Mailing List - Non-Commercial Discussion > Subject: Re: [asterisk-users] Answering machine answers after pickup a > phone. > > O Venres, 5 de Agosto de 2011 17:42:28 Shaun Ruffell escribiu: > > On Fri, Aug 05, 2011 at 01:14:58PM +0200, Jorge Barreiro wrote: > > > Hi, > > > > > > thanks for your time! > > > > > > O Venres, 5 de Agosto de 2011 12:35:05 escribiches: > > > > Completely normal operation. > > > > You need to read and understand more basic telephony and analog > > > > lines to understand why that won't work. > > > > > > I definitely have a lot to learn yet. > > > > > > > Asterisk needs to be in control, and once someone answers a phone > > > > not under Asterisk control, or the call is abandoned there is > > > > little you can do. > > > > > > What I pretend is that asterisk detects that it's not under control > > > and gets out of the way. The same way it detects a remote hangup and > > > stops the dialplan, it could detect that someone else answered (the > > > line is not ringing anymore) and discard it the same way it does > > > when the remote part hangup. > > > > > > I've read comments in forums and tutorials that seem to imply that > > > this happens, but I couldn't find any confirmation (and indeed, it's > > > not happening to me). > > > > When I first installed Asterisk in my home I used it in the way that > > you > > described: as a glorified answering machine to email to me any voice > > mail. > > > > I think what you want is the WaitForRing()[1] dial plan application. > > This function will wait x number of seconds, then look for *another* > > ring to come in. If someone answered the phone before the timeout to > > that function Asterisk would stop processing the dial plan. > > > > [1] https://wiki.asterisk.org/wiki/display/AST/Application_WaitForRing > > > > I ran into a couple of issues with WaitForRing(). The first being if > > someone answered the phone and then quickly hung up *and* a new phone > > call came in within the timeout period, Asterisk wouldn't know that > > the line was ringing due to a new call. The second problem was I never > > got the dial tone detection working so that if I tried to *place* a > > call from Asterisk while someone was on the house line I would aggravate > > my wife. > > > Since coming to work for Digium I've seen in the data sheets for the > > FXO interfaces that there is a capability to detect when a parallel > > device on a line goes off hook. This would allow Asterisk to have a > > better sense of the state of the line (like it currently can detect > > when a port is unplugged and there is not battery by generating a red > > alarm.) but I haven't looked into getting that information off the > > hardware and up into Asterisk. > > > Hope this helps, > > Shaun > > That application looks like a good solution. I can't test it until Monday, > but I'll try it and let you know. The drawbacks you mention doesn't seem > too inconvenient in my case. > > Anyway, I started with this cause I thought it was an easy first step, if > it gets so complicated I think I'll go forward and put all phones under > the control of the PBX. > > Thank you everybody for your help. > > > I don't think this is a solution to the problem you described. No matter > how long Asterisk 'waits for ring,' if the call has already been answered > when Asterisk picks up, things won't work out well.
The idea is that asterisk doesn't pick up if doesn't find the ring. > The solution I > described earlier, adding a simple exclusion device, will preclude > Asterisk 'stepping on' a call in progress. This is the approach that Shaun > suggests: "...a capability to detect when a parallel device on a line goes > off hook." As it has not been implemented in Asterisk, it can be handled > by an inexpensive device. This will enable you to do as you planned--test > your implementation step-by-step, starting with the "answering machine." Yes, that exclusion device would be more of a solution instead of just a workaround. But I'm finding it hard to find where to buy one in Spain (I've just started to look for them, anyway). Thanks. > --Don > > Don Kelly > > PCF Corp > People Come First > 651 842-1000 > 651 842-1001 fax > > > -- > _____________________________________________________________________ > -- Bandwidth and Colocation Provided by http://www.api-digital.com -- > New to Asterisk? Join us for a live introductory webinar every Thurs: > http://www.asterisk.org/hello > > asterisk-users mailing list > To UNSUBSCRIBE or update options visit: > http://lists.digium.com/mailman/listinfo/asterisk-users -- _____________________________________________________________________ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- New to Asterisk? Join us for a live introductory webinar every Thurs: http://www.asterisk.org/hello asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
