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<p class=MsoNormal dir=LTR style='text-align:left;direction:ltr;unicode-bidi:
embed'><font size=3 face="Baskerville Old Face"><span style='font-size:12.0pt;
font-family:"Baskerville Old Face"'>Hi,<o:p></o:p></span></font></p>
<p class=MsoNormal dir=LTR style='text-align:left;direction:ltr;unicode-bidi:
embed'><font size=3 face="Baskerville Old Face"><span style='font-size:12.0pt;
font-family:"Baskerville Old Face"'>How can I implement a full-featured
Call-Waiting behavior on the Asterisk level (e.g. I don't want to relay on
end-equipment capabilities)?<o:p></o:p></span></font></p>
<p class=MsoNormal dir=LTR style='text-align:left;direction:ltr;unicode-bidi:
embed'><font size=3 face="Baskerville Old Face"><span style='font-size:12.0pt;
font-family:"Baskerville Old Face"'>I found it very strange that such a basic
feature is not built-in in Asterisk (and I've <span class=SpellE>googled</span>
a lot in search for this).<o:p></o:p></span></font></p>
<p class=MsoNormal dir=LTR style='text-align:left;direction:ltr;unicode-bidi:
embed'><font size=3 face="Baskerville Old Face"><span style='font-size:12.0pt;
font-family:"Baskerville Old Face"'><o:p> </o:p></span></font></p>
<p class=MsoNormal dir=LTR style='text-align:left;direction:ltr;unicode-bidi:
embed'><font size=3 face="Baskerville Old Face"><span style='font-size:12.0pt;
font-family:"Baskerville Old Face"'>Here is what I need:<o:p></o:p></span></font></p>
<p class=MsoNormal dir=LTR style='text-align:left;direction:ltr;unicode-bidi:
embed'><span class=SpellE><font size=3 face="Baskerville Old Face"><span
style='font-size:12.0pt;font-family:"Baskerville Old Face"'>SomeuserX</span></font></span><font
face="Baskerville Old Face"><span style='font-family:"Baskerville Old Face"'>
is calling <span class=SpellE>MyUserA</span>. They are on conversation
(assumption: voice is via the Asterisk)<o:p></o:p></span></font></p>
<p class=MsoNormal dir=LTR style='text-align:left;direction:ltr;unicode-bidi:
embed'><span class=SpellE><font size=3 face="Baskerville Old Face"><span
style='font-size:12.0pt;font-family:"Baskerville Old Face"'>SomeuserY</span></font></span><font
face="Baskerville Old Face"><span style='font-family:"Baskerville Old Face"'>
is calling <span class=SpellE>MyUserA</span>.<o:p></o:p></span></font></p>
<p class=MsoNormal dir=LTR style='text-align:left;direction:ltr;unicode-bidi:
embed'><span class=SpellE><font size=3 face="Baskerville Old Face"><span
style='font-size:12.0pt;font-family:"Baskerville Old Face"'>SomeuserY</span></font></span><font
face="Baskerville Old Face"><span style='font-family:"Baskerville Old Face"'>
gets a special ringing tone. Meaning -> Asterisk opens voice channel towards
<span class=SpellE>SomeuserY</span> (progress with SDP) and plays <span
class=SpellE>SpecialRingBack.wav/gsm</span> etc.<o:p></o:p></span></font></p>
<p class=MsoNormal dir=LTR style='text-align:left;direction:ltr;unicode-bidi:
embed'><span class=SpellE><font size=3 face="Baskerville Old Face"><span
style='font-size:12.0pt;font-family:"Baskerville Old Face"'>MyUserA</span></font></span><font
face="Baskerville Old Face"><span style='font-family:"Baskerville Old Face"'>
Gets voice notification (e.g. beep-beep) during his call to <span class=SpellE>SomeuserX</span>.
Meaning -> Asterisk barge-in the <span class=SpellE>rtp</span> stream and
play the file <span class=SpellE>beepbeep.wav/gsm</span> on the <span
class=SpellE>MyUserA</span> channel. This is done periodically for as long as <span
class=SpellE>SomeuserY</span> is waiting to be answered (i.e. doesn't hang-up).<o:p></o:p></span></font></p>
<p class=MsoNormal dir=LTR style='text-align:left;direction:ltr;unicode-bidi:
embed'><font size=3 face="Baskerville Old Face"><span style='font-size:12.0pt;
font-family:"Baskerville Old Face"'>Asterisk is monitoring the state of the
call <span class=SpellE>SomeuserX</span> <-> <span class=SpellE>MyUserA</span>.<o:p></o:p></span></font></p>
<p class=MsoNormal dir=LTR style='text-align:left;direction:ltr;unicode-bidi:
embed'><font size=3 face="Baskerville Old Face"><span style='font-size:12.0pt;
font-family:"Baskerville Old Face"'>If the conversation <span class=SpellE>SomeuserX</span>
with <span class=SpellE>MyUserA</span> is terminated Asterisk will INVITE <span
class=SpellE>MyUserA</span> and when picked up will bridge <span class=SpellE>SomeuserY</span>
with <span class=SpellE>MyUserA</span>.<o:p></o:p></span></font></p>
<p class=MsoNormal dir=LTR style='text-align:left;direction:ltr;unicode-bidi:
embed'><font size=3 face="Baskerville Old Face"><span style='font-size:12.0pt;
font-family:"Baskerville Old Face"'>If <span class=SpellE>MyUserA</span> will
signal (e.g. hook-flash or some digit sequence) that he wants to answer the 2<sup>nd</sup>
call then Asterisk will put on hold <span class=SpellE>SomeuserX</span> and
bridge <span class=SpellE>SomeuserY</span> to <span class=SpellE>MyUserA</span>
with the option for <span class=SpellE>MyUserA</span> to toggle between the two
channels.<o:p></o:p></span></font></p>
<p class=MsoNormal dir=LTR style='text-align:left;direction:ltr;unicode-bidi:
embed'><font size=3 face="Baskerville Old Face"><span style='font-size:12.0pt;
font-family:"Baskerville Old Face"'>Thanks in advance,<o:p></o:p></span></font></p>
<p class=MsoNormal dir=LTR style='text-align:left;direction:ltr;unicode-bidi:
embed'><span class=SpellE><font size=3 face="Baskerville Old Face"><span
style='font-size:12.0pt;font-family:"Baskerville Old Face"'>Harel</span></font></span><font
face="Baskerville Old Face"><span style='font-family:"Baskerville Old Face"'><o:p></o:p></span></font></p>
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