<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<html xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:st1="urn:schemas-microsoft-com:office:smarttags" xmlns="http://www.w3.org/TR/REC-html40">
<head>
<META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=us-ascii">
<meta name=ProgId content=Word.Document>
<meta name=Generator content="Microsoft Word 10">
<meta name=Originator content="Microsoft Word 10">
<link rel=File-List href="cid:filelist.xml@01C4B081.5CE41DE0">
<o:SmartTagType namespaceuri="urn:schemas-microsoft-com:office:smarttags"
name="time"/>
<o:SmartTagType namespaceuri="urn:schemas-microsoft-com:office:smarttags"
name="date"/>
<!--[if gte mso 9]><xml>
<o:OfficeDocumentSettings>
<o:DoNotRelyOnCSS/>
</o:OfficeDocumentSettings>
</xml><![endif]--><!--[if gte mso 9]><xml>
<w:WordDocument>
<w:SpellingState>Clean</w:SpellingState>
<w:GrammarState>Clean</w:GrammarState>
<w:DocumentKind>DocumentEmail</w:DocumentKind>
<w:EnvelopeVis/>
<w:Compatibility>
<w:BreakWrappedTables/>
<w:SnapToGridInCell/>
<w:WrapTextWithPunct/>
<w:UseAsianBreakRules/>
</w:Compatibility>
<w:BrowserLevel>MicrosoftInternetExplorer4</w:BrowserLevel>
</w:WordDocument>
</xml><![endif]--><!--[if !mso]>
<style>
st1\:*{behavior:url(#default#ieooui) }
</style>
<![endif]-->
<style>
<!--
/* Font Definitions */
@font-face
{font-family:Tahoma;
panose-1:2 11 6 4 3 5 4 4 2 4;
mso-font-charset:0;
mso-generic-font-family:swiss;
mso-font-pitch:variable;
mso-font-signature:1627421319 -2147483648 8 0 66047 0;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{mso-style-parent:"";
margin:0in;
margin-bottom:.0001pt;
mso-pagination:widow-orphan;
font-size:12.0pt;
font-family:"Times New Roman";
mso-fareast-font-family:"Times New Roman";}
a:link, span.MsoHyperlink
{color:blue;
text-decoration:underline;
text-underline:single;}
a:visited, span.MsoHyperlinkFollowed
{color:purple;
text-decoration:underline;
text-underline:single;}
span.EmailStyle17
{mso-style-type:personal;
mso-style-noshow:yes;
mso-ansi-font-size:10.0pt;
mso-bidi-font-size:10.0pt;
font-family:Arial;
mso-ascii-font-family:Arial;
mso-hansi-font-family:Arial;
mso-bidi-font-family:Arial;
color:windowtext;}
span.EmailStyle18
{mso-style-type:personal-reply;
mso-style-noshow:yes;
mso-ansi-font-size:10.0pt;
mso-bidi-font-size:10.0pt;
font-family:Arial;
mso-ascii-font-family:Arial;
mso-hansi-font-family:Arial;
mso-bidi-font-family:Arial;
color:navy;}
span.SpellE
{mso-style-name:"";
mso-spl-e:yes;}
@page Section1
{size:8.5in 11.0in;
margin:1.0in 1.25in 1.0in 1.25in;
mso-header-margin:.5in;
mso-footer-margin:.5in;
mso-paper-source:0;}
div.Section1
{page:Section1;}
-->
</style>
<!--[if gte mso 10]>
<style>
/* Style Definitions */
table.MsoNormalTable
{mso-style-name:"Table Normal";
mso-tstyle-rowband-size:0;
mso-tstyle-colband-size:0;
mso-style-noshow:yes;
mso-style-parent:"";
mso-padding-alt:0in 5.4pt 0in 5.4pt;
mso-para-margin:0in;
mso-para-margin-bottom:.0001pt;
mso-pagination:widow-orphan;
font-size:10.0pt;
font-family:"Times New Roman";}
</style>
<![endif]-->
</head>
<body lang=EN-US link=blue vlink=purple style='tab-interval:.5in'>
<div class=Section1>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>It actually gets more complicated as you
add additional asterisk servers to scale. If the call “traverses”
from one to another there is virtually no way to “track” it and
unify it back. That is a stumbling block I have been considering… but not
very hard as I have been pursuing the “non-intrusive” method.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>I’ll contact you off-list to
discuss.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Brian<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Tahoma><span
style='font-size:10.0pt;font-family:Tahoma'>-----Original Message-----<br>
<b><span style='font-weight:bold'>From:</span></b> Zac Wolfe
[mailto:zacw@safisys.com] <br>
<b><span style='font-weight:bold'>Sent:</span></b> </span></font><st1:date
Month="10" Day="12" Year="2004"><font size=2 face=Tahoma><span
style='font-size:10.0pt;font-family:Tahoma'>Tuesday, October 12, 2004</span></font></st1:date><font
size=2 face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'> </span></font><st1:time
Hour="16" Minute="6"><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma'>4:06 PM</span></font></st1:time><font size=2 face=Tahoma><span
style='font-size:10.0pt;font-family:Tahoma'><br>
<b><span style='font-weight:bold'>To:</span></b> 'Asterisk Developers Mailing
List'<br>
<b><span style='font-weight:bold'>Cc:</span></b> b.t.roy@brianandkelly.ws<br>
<b><span style='font-weight:bold'>Subject:</span></b> RE: [Asterisk-Dev] Asterisk
Manager and app_dial challenge.</span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'><o:p> </o:p></span></font></p>
<div>
<p class=MsoNormal style='margin-left:.5in'><font size=2 color=blue face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:blue'>That's interesting.
I'm sure your idea will work (the pre-link event) but keep in mind that you'll
probly have to insert that in multiple places since there are apps and methods
other than app_dial that use ast_request. </span></font><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'> <o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal style='margin-left:.5in'><font size=2 color=blue face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:blue'>Yeah at first I was just
mucking around with Asterisk and learning C at the same time so I got a little
fast and lose with the code changes. I do plan on going back over that
stuff and removing all the changes that aren't completely necessary. </span></font><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'> <o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal style='margin-left:.5in'><font size=2 color=blue face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:blue'>I really think that
Asterisk needs a built-in call_uid field (or variable) that ties together
mutliple channels into a call "object". As you've noted, this
is a requirement if you want to follow a call throughout it's complete
lifecycle (complete with events and error notification) which is, in turn, a
necessity for implementing 3rd-party call-control, one of my primary goals
for JAsterisk. </span></font><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'> <o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal style='margin-left:.5in'><font size=2 color=blue face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:blue'>I'd love to hear your
ideas on a non-intrusive solution! </span></font><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'> <o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal style='margin-left:.5in'><font size=2 color=blue face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:blue'>Should we take this
discussion offline?</span></font><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'> <o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal style='margin-left:.5in'><font size=2 color=blue face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:blue'>Thanks,</span></font><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal style='margin-left:.5in'><font size=2 color=blue face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:blue'>Zac</span></font><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal style='mso-margin-top-alt:0in;margin-right:0in;margin-bottom:
12.0pt;margin-left:.5in'><font size=3 face=Tahoma><span style='font-size:12.0pt;
font-family:Tahoma'><br>
</span></font><font size=2 color=blue face=Arial><span style='font-size:10.0pt;
font-family:Arial;color:blue'> </span></font><font size=2 face=Tahoma><span
style='font-size:10.0pt;font-family:Tahoma'>-----Original Message-----<br>
<b><span style='font-weight:bold'>From:</span></b> Brian Roy
[mailto:b.t.roy@brianandkelly.ws]<br>
<b><span style='font-weight:bold'>Sent:</span></b> </span></font><st1:date
Month="10" Day="12" Year="2004"><font size=2 face=Tahoma><span
style='font-size:10.0pt;font-family:Tahoma'>Tuesday, October 12, 2004</span></font></st1:date><font
size=2 face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'> </span></font><st1:time
Hour="15" Minute="35"><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma'>3:35 PM</span></font></st1:time><font size=2 face=Tahoma><span
style='font-size:10.0pt;font-family:Tahoma'><br>
<b><span style='font-weight:bold'>To:</span></b> asterisk-dev@lists.digium.com<br>
<b><span style='font-weight:bold'>Subject:</span></b> RE: [Asterisk-Dev]
Asterisk Manager and app_dial challenge.</span></font><font face=Tahoma><span
style='font-family:Tahoma'><o:p></o:p></span></font></p>
</div>
<blockquote style='margin-top:5.0pt;margin-right:0in;margin-bottom:5.0pt'>
<p class=MsoNormal style='margin-left:.5in;mso-layout-grid-align:none'><font
size=2 face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'>Thanks
– I was going to head down the channel path, but I think I have found an
even easier way. It should be possible in the do loop in app_dial execute function
to insert a manager_event command with both unique ids like the Link event.<o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in;mso-layout-grid-align:none'><font
size=2 face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in;mso-layout-grid-align:none'><font
size=2 face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'>I
was hoping to avoid modifying Asterisk any further… but what the heck.<o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in;mso-layout-grid-align:none'><font
size=2 face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in;mso-layout-grid-align:none'><font
size=2 face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'>I
would also like to talk to you about your JAsterisk project and your plan for
VXML and CCXML. I have developed an architecture for a non-intrusive solution
which solves for what you are doing, what I am doing and multiple other uses.
It would be pure sip and only requires a sip proxy (and gateway if needed).<o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in;mso-layout-grid-align:none'><font
size=2 face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in;mso-layout-grid-align:none'><font
size=2 face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'>Brian
<o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in;mso-layout-grid-align:none'><font
size=2 face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'><br
style='mso-special-character:line-break'>
<![if !supportLineBreakNewLine]><br style='mso-special-character:line-break'>
<![endif]><o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in;mso-layout-grid-align:none'><font
size=2 face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in;mso-layout-grid-align:none'><font
size=2 face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in;mso-layout-grid-align:none'><font
size=2 face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in;mso-layout-grid-align:none'><font
size=2 face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'>That's
exactly the issue I ran into while working on Jasterisk. My solution was to
modify pbx.ast_request to take an additional optional parameter that could act
as a call identifier and set a predefined variable in the newly created channel
to that variable.<span style='mso-spacerun:yes'> </span>Then, when I
receive a "newchannel" or "newstate" event, I can find the
channel and check to see if it's already associated with a "call"
object.<span style='mso-spacerun:yes'> </span>Or, I suppose you could
modify the event to include a "Call_UID" field so you wouldn't have
to grab the variable from the channel directly (hey why didn't I do that?).<o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in;mso-layout-grid-align:none'><font
size=2 face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New"'>Zac<o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New"'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
</blockquote>
</div>
</body>
</html>