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<p class=MsoNormal><font size=2 face=Arial><span lang=EN-US style='font-size:
10.0pt;font-family:Arial;mso-ansi-language:EN-US'>I was making some fax tests
using a Cisco AS5300, <span class=SpellE>OpenSER</span> 1.0.1 and a </span></font><st1:PersonName><font
size=2 face=Arial><span lang=EN-US style='font-size:10.0pt;font-family:Arial;
mso-ansi-language:EN-US'>Grandstream</span></font></st1:PersonName><font
size=2 face=Arial><span lang=EN-US style='font-size:10.0pt;font-family:Arial;
mso-ansi-language:EN-US'> HandyTone 486. Everything results fine when I
previously make the same test directly from the HandyTone to the <span
class=GramE>AS5300,</span> however when I put <span class=SpellE>OpenSER</span>
in the middle the fax connection could not be established. Checking captures at
both ends, I noticed the HandyTone was not receiving the OK response to its
RE-INVITE request, but the AS5300 was sending it. Looking a capture in the <span
class=SpellE>OpenSER</span>, I suppose it didn’t send the OK response
from the AS5300 to the HandyTone because the format of the Via Header used by
the AS5300. Look at the captures below, the AS5300 sends the <span class=GramE>Via</span>
header in a comma-separated format instead using a line for each one. Is there
a way to workaround this?<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-US style='font-size:
10.0pt;font-family:Arial;mso-ansi-language:EN-US'>I think my best option is to
modify the <span class=SpellE>OpenSER</span> code to support both formats. Is
this something that somebody already does it? If the answer it is not, where
can I start?<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-US style='font-size:
10.0pt;font-family:Arial;mso-ansi-language:EN-US'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-US style='font-size:
10.0pt;font-family:Arial;mso-ansi-language:EN-US'>I’ll appreciate any
help.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-US style='font-size:
10.0pt;font-family:Arial;mso-ansi-language:EN-US'><o:p> </o:p></span></font></p>
<p class=MsoNormal><st1:PersonName><font size=2 face=Arial><span lang=EN-US
style='font-size:10.0pt;font-family:Arial;mso-ansi-language:EN-US'>Dioris
Moreno</span></font></st1:PersonName><font size=2 face=Arial><span lang=EN-US
style='font-size:10.0pt;font-family:Arial;mso-ansi-language:EN-US'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-US style='font-size:
10.0pt;font-family:Arial;mso-ansi-language:EN-US'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-US style='font-size:
10.0pt;font-family:Arial;mso-ansi-language:EN-US'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-US style='font-size:
10.0pt;font-family:Arial;mso-ansi-language:EN-US'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='mso-layout-grid-align:none;text-autospace:none'><font
size=2 face="Courier New"><span lang=EN-US style='font-size:10.0pt;font-family:
"Courier New";mso-ansi-language:EN-US'>Cisco AS5300 IP Address:<span
style='mso-tab-count:2'> </span>AAA.BBB.CCC.DDD<o:p></o:p></span></font></p>
<p class=MsoNormal style='mso-layout-grid-align:none;text-autospace:none'><span
class=SpellE><font size=2 face="Courier New"><span lang=EN-US style='font-size:
10.0pt;font-family:"Courier New";mso-ansi-language:EN-US'>OpenSER</span></font></span><font
size=2 face="Courier New"><span lang=EN-US style='font-size:10.0pt;font-family:
"Courier New";mso-ansi-language:EN-US'> IP Address:<span style='mso-tab-count:
3'> </span>WWW.XXX.YYY.ZZZ<o:p></o:p></span></font></p>
<p class=MsoNormal style='mso-layout-grid-align:none;text-autospace:none'><st1:PersonName><font
size=2 face="Courier New"><span lang=EN-US style='font-size:10.0pt;font-family:
"Courier New";mso-ansi-language:EN-US'>Grandstream</span></font></st1:PersonName><font
size=2 face="Courier New"><span lang=EN-US style='font-size:10.0pt;font-family:
"Courier New";mso-ansi-language:EN-US'> HT486 IP Address:<span
style='mso-tab-count:2'> </span>FFF.GGG.HHH.III<o:p></o:p></span></font></p>
<p class=MsoNormal style='mso-layout-grid-align:none;text-autospace:none'><font
size=2 face="Courier New"><span lang=EN-US style='font-size:10.0pt;font-family:
"Courier New";mso-ansi-language:EN-US'>Calling Party Number (PSTN):<span
style='mso-tab-count:1'> </span><span style='mso-tab-count:1'> </span><span
class=SpellE>UserA</span><o:p></o:p></span></font></p>
<p class=MsoNormal style='mso-layout-grid-align:none;text-autospace:none'><font
size=2 face="Courier New"><span lang=EN-US style='font-size:10.0pt;font-family:
"Courier New";mso-ansi-language:EN-US'>Called Party Number (VoIP):<span
style='mso-tab-count:2'> </span><span
class=SpellE>UserB</span><o:p></o:p></span></font></p>
<p class=MsoNormal style='mso-layout-grid-align:none;text-autospace:none'><font
size=2 face="Courier New"><span lang=EN-US style='font-size:10.0pt;font-family:
"Courier New";mso-ansi-language:EN-US'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='mso-layout-grid-align:none;text-autospace:none'><font
size=2 face="Courier New"><span lang=EN-US style='font-size:10.0pt;font-family:
"Courier New";mso-ansi-language:EN-US'>Message <span class=GramE>From</span> <span
class=SpellE>OpenSER</span> to Cisco AS5300<o:p></o:p></span></font></p>
<p class=MsoNormal style='mso-layout-grid-align:none;text-autospace:none'><font
size=2 face="Courier New"><span lang=EN-US style='font-size:10.0pt;font-family:
"Courier New";mso-ansi-language:EN-US'>Session Initiation Protocol<o:p></o:p></span></font></p>
<p class=MsoNormal style='mso-layout-grid-align:none;text-autospace:none'><font
size=2 face="Courier New"><span lang=EN-US style='font-size:10.0pt;font-family:
"Courier New";mso-ansi-language:EN-US'><span
style='mso-spacerun:yes'> </span>Request-Line: INVITE
sip:UserA@AAA.BBB.CCC.DDD:5060 SIP/2.0<o:p></o:p></span></font></p>
<p class=MsoNormal style='mso-layout-grid-align:none;text-autospace:none'><font
size=2 face="Courier New"><span lang=EN-US style='font-size:10.0pt;font-family:
"Courier New";mso-ansi-language:EN-US'><span
style='mso-spacerun:yes'> </span>Method:
INVITE<o:p></o:p></span></font></p>
<p class=MsoNormal style='mso-layout-grid-align:none;text-autospace:none'><font
size=2 face="Courier New"><span lang=EN-US style='font-size:10.0pt;font-family:
"Courier New";mso-ansi-language:EN-US'><span
style='mso-spacerun:yes'>
</span>Resent Packet: False<o:p></o:p></span></font></p>
<p class=MsoNormal style='mso-layout-grid-align:none;text-autospace:none'><font
size=2 face="Courier New"><span lang=EN-US style='font-size:10.0pt;font-family:
"Courier New";mso-ansi-language:EN-US'><span
style='mso-spacerun:yes'> </span>Message Header<o:p></o:p></span></font></p>
<p class=MsoNormal style='mso-layout-grid-align:none;text-autospace:none'><font
size=2 face="Courier New"><span lang=EN-US style='font-size:10.0pt;font-family:
"Courier New";mso-ansi-language:EN-US'><span
style='mso-spacerun:yes'> </span>Record-Route:
<<span class=SpellE>sip<span class=GramE>:WWW.XXX.YYY.ZZZ</span>;ftag</span>=266f5f157860b9ca;lr=on><o:p></o:p></span></font></p>
<p class=MsoNormal style='mso-layout-grid-align:none;text-autospace:none'><font
size=2 face="Courier New"><span lang=EN-US style='font-size:10.0pt;font-family:
"Courier New";mso-ansi-language:EN-US'><span
style='mso-spacerun:yes'> </span>Via:
SIP/2.0/UDP <span class=SpellE>WWW.XXX.YYY.ZZZ;branch</span>=z9hG4bK6a82.677fb8e1.0<o:p></o:p></span></font></p>
<p class=MsoNormal style='mso-layout-grid-align:none;text-autospace:none'><font
size=2 face="Courier New"><span lang=EN-US style='font-size:10.0pt;font-family:
"Courier New";mso-ansi-language:EN-US'><span
style='mso-spacerun:yes'> </span>Via:
SIP/2.0/UDP FFF.GGG.HHH.III:50841<span class=GramE>;branch</span>=z9hG4bK90436408698e6881<o:p></o:p></span></font></p>
<p class=MsoNormal style='mso-layout-grid-align:none;text-autospace:none'><font
size=2 face="Courier New"><span lang=EN-US style='font-size:10.0pt;font-family:
"Courier New";mso-ansi-language:EN-US'><span
style='mso-spacerun:yes'> </span>From:
<<span class=SpellE>sip:UserB@WWW.XXX.YYY.ZZZ</span>>;tag=266f5f157860b9ca<o:p></o:p></span></font></p>
<p class=MsoNormal style='mso-layout-grid-align:none;text-autospace:none'><font
size=2 face="Courier New"><span lang=EN-US style='font-size:10.0pt;font-family:
"Courier New";mso-ansi-language:EN-US'><span
style='mso-spacerun:yes'>
</span>SIP from address: <span class=SpellE>sip:UserB@WWW.XXX.YYY.ZZZ</span><o:p></o:p></span></font></p>
<p class=MsoNormal style='mso-layout-grid-align:none;text-autospace:none'><font
size=2 face="Courier New"><span lang=EN-US style='font-size:10.0pt;font-family:
"Courier New";mso-ansi-language:EN-US'><span
style='mso-spacerun:yes'>
</span>SIP tag: 266f5f157860b9ca<o:p></o:p></span></font></p>
<p class=MsoNormal style='mso-layout-grid-align:none;text-autospace:none'><font
size=2 face="Courier New"><span lang=EN-US style='font-size:10.0pt;font-family:
"Courier New";mso-ansi-language:EN-US'><span
style='mso-spacerun:yes'> </span>To:
<<span class=SpellE>sip:UserA@AAA.BBB.CCC.DDD</span>>;tag=D33F86B0-94F<o:p></o:p></span></font></p>
<p class=MsoNormal style='mso-layout-grid-align:none;text-autospace:none'><font
size=2 face="Courier New"><span lang=EN-US style='font-size:10.0pt;font-family:
"Courier New";mso-ansi-language:EN-US'><span
style='mso-spacerun:yes'>
</span>SIP to address: <span class=SpellE>sip:UserA@AAA.BBB.CCC.DDD</span><o:p></o:p></span></font></p>
<p class=MsoNormal style='mso-layout-grid-align:none;text-autospace:none'><font
size=2 face="Courier New"><span lang=EN-US style='font-size:10.0pt;font-family:
"Courier New";mso-ansi-language:EN-US'><span
style='mso-spacerun:yes'>
</span>SIP tag: D33F86B0-94F<o:p></o:p></span></font></p>
<p class=MsoNormal style='mso-layout-grid-align:none;text-autospace:none'><font
size=2 face="Courier New"><span lang=EN-US style='font-size:10.0pt;font-family:
"Courier New";mso-ansi-language:EN-US'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='mso-layout-grid-align:none;text-autospace:none'><font
size=2 face="Courier New"><span lang=EN-US style='font-size:10.0pt;font-family:
"Courier New";mso-ansi-language:EN-US'>Message <span class=GramE>From</span>
Cisco AS5300 to <span class=SpellE>OpenSER</span><o:p></o:p></span></font></p>
<p class=MsoNormal style='mso-layout-grid-align:none;text-autospace:none'><font
size=2 face="Courier New"><span lang=EN-US style='font-size:10.0pt;font-family:
"Courier New";mso-ansi-language:EN-US'>Session Initiation Protocol<o:p></o:p></span></font></p>
<p class=MsoNormal style='mso-layout-grid-align:none;text-autospace:none'><font
size=2 face="Courier New"><span lang=EN-US style='font-size:10.0pt;font-family:
"Courier New";mso-ansi-language:EN-US'><span
style='mso-spacerun:yes'> </span>Status-Line: SIP/2.0 200 OK<o:p></o:p></span></font></p>
<p class=MsoNormal style='mso-layout-grid-align:none;text-autospace:none'><font
size=2 face="Courier New"><span lang=EN-US style='font-size:10.0pt;font-family:
"Courier New";mso-ansi-language:EN-US'><span
style='mso-spacerun:yes'> </span>Status-Code:
200<o:p></o:p></span></font></p>
<p class=MsoNormal style='mso-layout-grid-align:none;text-autospace:none'><font
size=2 face="Courier New"><span lang=EN-US style='font-size:10.0pt;font-family:
"Courier New";mso-ansi-language:EN-US'><span
style='mso-spacerun:yes'>
</span>Resent Packet: False<o:p></o:p></span></font></p>
<p class=MsoNormal style='mso-layout-grid-align:none;text-autospace:none'><font
size=2 face="Courier New"><span lang=EN-US style='font-size:10.0pt;font-family:
"Courier New";mso-ansi-language:EN-US'><span
style='mso-spacerun:yes'> </span>Message Header<o:p></o:p></span></font></p>
<p class=MsoNormal style='mso-layout-grid-align:none;text-autospace:none'><font
size=2 face="Courier New"><span lang=EN-US style='font-size:10.0pt;font-family:
"Courier New";mso-ansi-language:EN-US'><span
style='mso-spacerun:yes'> </span>Via:
SIP/2.0/UDP <span class=SpellE>WWW.XXX.YYY.ZZZ;branch</span>=z9hG4bK6a82.677fb8e1.0,SIP/2.0/UDP
FFF.GGG.HHH.III:50841<span class=GramE>;branch</span>=z9hG4bK90436408698e6881<o:p></o:p></span></font></p>
<p class=MsoNormal style='mso-layout-grid-align:none;text-autospace:none'><font
size=2 face="Courier New"><span lang=EN-US style='font-size:10.0pt;font-family:
"Courier New";mso-ansi-language:EN-US'><span
style='mso-spacerun:yes'> </span>From:
<<span class=SpellE>sip:UserB@WWW.XXX.YYY.ZZZ</span>>;tag=266f5f157860b9ca<o:p></o:p></span></font></p>
<p class=MsoNormal style='mso-layout-grid-align:none;text-autospace:none'><font
size=2 face="Courier New"><span lang=EN-US style='font-size:10.0pt;font-family:
"Courier New";mso-ansi-language:EN-US'><span
style='mso-spacerun:yes'>
</span>SIP from address: <span class=SpellE>sip:UserB@WWW.XXX.YYY.ZZZ</span><o:p></o:p></span></font></p>
<p class=MsoNormal style='mso-layout-grid-align:none;text-autospace:none'><font
size=2 face="Courier New"><span lang=EN-US style='font-size:10.0pt;font-family:
"Courier New";mso-ansi-language:EN-US'><span
style='mso-spacerun:yes'>
</span>SIP tag: 266f5f157860b9ca<o:p></o:p></span></font></p>
<p class=MsoNormal style='mso-layout-grid-align:none;text-autospace:none'><font
size=2 face="Courier New"><span lang=EN-US style='font-size:10.0pt;font-family:
"Courier New";mso-ansi-language:EN-US'><span
style='mso-spacerun:yes'> </span>To:
<<span class=SpellE>sip:UserA@AAA.BBB.CCC.DDD</span>>;tag=D33F86B0-94F<o:p></o:p></span></font></p>
<p class=MsoNormal style='mso-layout-grid-align:none;text-autospace:none'><font
size=2 face="Courier New"><span lang=EN-US style='font-size:10.0pt;font-family:
"Courier New";mso-ansi-language:EN-US'><span
style='mso-spacerun:yes'>
</span>SIP to address: <span class=SpellE>sip:UserA@AAA.BBB.CCC.DDD</span><o:p></o:p></span></font></p>
<p class=MsoNormal style='mso-layout-grid-align:none;text-autospace:none'><font
size=2 face="Courier New"><span lang=EN-US style='font-size:10.0pt;font-family:
"Courier New";mso-ansi-language:EN-US'><span
style='mso-spacerun:yes'>
</span></span></font><font size=2 face="Courier New"><span style='font-size:
10.0pt;font-family:"Courier New"'>SIP <span class=SpellE>tag</span>:
D33F86B0-94F<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span lang=EN-US
style='font-size:12.0pt;mso-ansi-language:EN-US'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span lang=EN-US
style='font-size:12.0pt;mso-ansi-language:EN-US'><o:p> </o:p></span></font></p>
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