<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD><TITLE>Re: [Freeswitch-users] send fax via google voice.</TITLE>
<META content="text/html; charset=iso-8859-1" http-equiv=Content-Type>
<META name=GENERATOR content="MSHTML 8.00.6001.19019">
<STYLE></STYLE>
</HEAD>
<BODY bgColor=#ffffff>
<DIV><FONT size=2>because crypto was and is not allowed in some countries
also...</FONT></DIV>
<BLOCKQUOTE
style="BORDER-LEFT: #000000 2px solid; PADDING-LEFT: 5px; PADDING-RIGHT: 0px; MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px">
<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="FONT: 10pt arial; BACKGROUND: #e4e4e4; font-color: black"><B>From:</B>
<A title=krice@freeswitch.org href="mailto:krice@freeswitch.org">Ken Rice</A>
</DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A
title=freeswitch-users@lists.freeswitch.org
href="mailto:freeswitch-users@lists.freeswitch.org">FreeSWITCH Users Help</A>
</DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Sunday, March 06, 2011 12:23
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [Freeswitch-users] send fax
via google voice.</DIV>
<DIV><BR></DIV><FONT face="Calibri, Verdana, Helvetica, Arial"><SPAN
style="FONT-SIZE: 11pt">Geography doesn’t stop a determined attacker...
<BR><BR>Just because its a little more difficult, that doesn’t mean it is
secure... If that were the case then Classified US Government Faxes wouldn’t
require crypto gear in line (see STU-III for an example of this that’s over 20
years old)<BR><BR>K<BR><BR><BR>On 3/6/11 11:08 AM, "Madovsky" <<A
href="mailto:infos@madovsky.org">infos@madovsky.org</A>>
wrote:<BR><BR></SPAN></FONT>
<BLOCKQUOTE><FONT face="Calibri, Verdana, Helvetica, Arial"><SPAN
style="FONT-SIZE: 11pt">I think it's more hard for a guy to hack your US
pstn line if he lives<BR>in Australia... fax on internet can be hacked from
everywhere...<BR></SPAN></FONT>
<BLOCKQUOTE><FONT face="Calibri, Verdana, Helvetica, Arial"><SPAN
style="FONT-SIZE: 11pt"><BR>----- Original Message -----
<BR> <BR><B>From:</B> Ken Rice <<A
href="mailto:krice@freeswitch.org">mailto:krice@freeswitch.org</A>>
<BR> <BR><B>To:</B> FreeSWITCH Users Help <<A
href="mailto:freeswitch-users@lists.freeswitch.org">mailto:freeswitch-users@lists.freeswitch.org</A>>
<BR> <BR><B>Sent:</B> Sunday, March 06, 2011 11:55
AM<BR> <BR><B>Subject:</B> Re: [Freeswitch-users] send fax
via google voice.<BR> <BR><BR>What security reasons? Its just
as easy to tap a PSTN line as it is to sniff a network connection,
the only difference is you might need a little bit different
hardware...<BR><BR>If it were about security, fax machines would
actually encrypt a fax but they don’t... <BR><BR><BR>On 3/6/11 1:55
AM, "envelopes envelopes" <<A
href="sunwood360@gmail.com">sunwood360@gmail.com</A>>
wrote:<BR><BR> <BR></SPAN></FONT>
<BLOCKQUOTE><FONT face="Calibri, Verdana, Helvetica, Arial"><SPAN
style="FONT-SIZE: 11pt">that is not true.<BR><BR>Real estator/law
firm/accounting offices/travel agents...many of them still prefer
fax for security reasons.<BR>I am always worried about sending my
driver license pdf file via e-mail.<BR><BR><BR><BR>On Sat, Mar 5,
2011 at 11:34 PM, curriegrad2004 <<A
href="curriegrad2004@gmail.com">curriegrad2004@gmail.com</A>>
wrote:<BR> <BR></SPAN></FONT>
<BLOCKQUOTE><FONT face="Calibri, Verdana, Helvetica, Arial"><SPAN
style="FONT-SIZE: 11pt">That's why PDF's/XPS/tiff's have replaced fax
completely. Not many<BR>people out there still do have a fax
machine :)<BR><BR>On Sat, Mar 5, 2011 at 10:56 PM, Ken Rice
<<A href="krice@freeswitch.org">krice@freeswitch.org</A>>
wrote:<BR>> Ok<BR>><BR>> will sending a fax over it
work... The answer is yes it will work..<BR>> will it work
reliably, no<BR>><BR>> Faxing just needs to die
already...<BR>> The problem you have here with Faxing over
G711 (PCMU or PCMA) is that<BR>> faxing uses a modem to
encode a digital signal into an analog carrier meant<BR>> for
a circuit switch voice network with a constant amount of delay
and<BR>> guaranteed delivery of the entire analog
stream<BR>><BR>> VoIP by definition is Voice Over Internet
Protocol... IP is a packet<BR>> switched network, where you
can no guarantee a constant amount delay<BR>> (latency) ...
Not to mention it is not common to see a udp packet or 2<BR>>
missing along the way.<BR>><BR>> Where as 1 20ms packet
may not seem like much to you, that’s roughtly<BR>>
equivalent to 575bytes of data in the fax and it will screw up
the fax<BR>> either causing a corruption of the data, or a
drop in the analog modem<BR>> carrier which requires a
retrain...<BR>><BR>><BR>><BR>><BR>> On 3/5/11
11:35 PM, "envelopes envelopes" <<A
href="sunwood360@gmail.com">sunwood360@gmail.com</A>>
wrote:<BR>><BR>> ok,<BR>><BR>> Reliability is a
different issue. I am just wondering whether
mod_dingaling<BR>> supports fax via GV. because someone
proved sending fax via GV from fax<BR>> machine did
work<BR>> .(<A
href="http://www.magicjacksupport.com/faxing-via-google-voice-t7412.html">http://www.magicjacksupport.com/faxing-via-google-voice-t7412.html</A>).<BR>><BR>><BR>><BR>>
On Sat, Mar 5, 2011 at 9:18 PM, curriegrad2004 <<A
href="curriegrad2004@gmail.com">curriegrad2004@gmail.com</A>><BR>>
wrote:<BR>><BR>> And relativity comes into play
too.<BR>><BR>> Also you do need to realize that the
packets sent via UDP isn't<BR>> guaranteed to be in order as
the fax machine expects the data to be<BR>> sent in order,
not out of order. That's the beauty of packet switched<BR>>
networks.<BR>><BR>> On Sat, Mar 5, 2011 at 7:29 PM, Steve
Underwood <<A href="steveu@coppice.org">steveu@coppice.org</A>>
wrote:<BR>>> On 03/06/2011 11:21 AM, envelopes envelopes
wrote:<BR>>>><BR>>>> Why is PCMU codec not
reliable?<BR>>>><BR>>>><BR>>>
Unsynchronised clocks, and packet loss.<BR>>><BR>>>
Steve<BR>>><BR>>><BR>>>
_______________________________________________<BR>>>
FreeSWITCH-users mailing list<BR>>> <A
href="FreeSWITCH-users@lists.freeswitch.org">FreeSWITCH-users@lists.freeswitch.org</A><BR>>>
<A
href="http://lists.freeswitch.org/mailman/listinfo/freeswitch-users">http://lists.freeswitch.org/mailman/listinfo/freeswitch-users</A><BR>>>
UNSUBSCRIBE:<A
href="http://lists.freeswitch.org/mailman/options/freeswitch-users">http://lists.freeswitch.org/mailman/options/freeswitch-users</A><BR>>>
<A
href="http://www.freeswitch.org">http://www.freeswitch.org</A><BR>>><BR>><BR>>
_______________________________________________<BR>>
FreeSWITCH-users mailing list<BR>> <A
href="FreeSWITCH-users@lists.freeswitch.org">FreeSWITCH-users@lists.freeswitch.org</A><BR>>
<A
href="http://lists.freeswitch.org/mailman/listinfo/freeswitch-users">http://lists.freeswitch.org/mailman/listinfo/freeswitch-users</A><BR>>
UNSUBSCRIBE:<A
href="http://lists.freeswitch.org/mailman/options/freeswitch-users">http://lists.freeswitch.org/mailman/options/freeswitch-users</A><BR>>
<A
href="http://www.freeswitch.org">http://www.freeswitch.org</A><BR>><BR>><BR>>
________________________________<BR>>
_______________________________________________<BR>>
FreeSWITCH-users mailing list<BR>> <A
href="FreeSWITCH-users@lists.freeswitch.org">FreeSWITCH-users@lists.freeswitch.org</A><BR>>
<A
href="http://lists.freeswitch.org/mailman/listinfo/freeswitch-users">http://lists.freeswitch.org/mailman/listinfo/freeswitch-users</A><BR>>
UNSUBSCRIBE:<A
href="http://lists.freeswitch.org/mailman/options/freeswitch-users">http://lists.freeswitch.org/mailman/options/freeswitch-users</A><BR>>
<A
href="http://www.freeswitch.org">http://www.freeswitch.org</A><BR>><BR>>
_______________________________________________<BR>>
FreeSWITCH-users mailing list<BR>> <A
href="FreeSWITCH-users@lists.freeswitch.org">FreeSWITCH-users@lists.freeswitch.org</A><BR>>
<A
href="http://lists.freeswitch.org/mailman/listinfo/freeswitch-users">http://lists.freeswitch.org/mailman/listinfo/freeswitch-users</A><BR>>
UNSUBSCRIBE:<A
href="http://lists.freeswitch.org/mailman/options/freeswitch-users">http://lists.freeswitch.org/mailman/options/freeswitch-users</A><BR>>
<A
href="http://www.freeswitch.org">http://www.freeswitch.org</A><BR>><BR>><BR><BR>_______________________________________________<BR>FreeSWITCH-users
mailing list<BR><A
href="FreeSWITCH-users@lists.freeswitch.org">FreeSWITCH-users@lists.freeswitch.org</A><BR><A
href="http://lists.freeswitch.org/mailman/listinfo/freeswitch-users">http://lists.freeswitch.org/mailman/listinfo/freeswitch-users</A><BR>UNSUBSCRIBE:<A
href="http://lists.freeswitch.org/mailman/options/freeswitch-users">http://lists.freeswitch.org/mailman/options/freeswitch-users</A><BR><A
href="http://www.freeswitch.org">http://www.freeswitch.org</A><BR></SPAN></FONT></BLOCKQUOTE><FONT
face="Calibri, Verdana, Helvetica, Arial"><SPAN
style="FONT-SIZE: 11pt"><BR><BR> <BR>
<HR align=center SIZE=3 width="95%">
</SPAN></FONT><FONT size=2><FONT
face="Consolas, Courier New, Courier"><SPAN
style="FONT-SIZE: 10pt">_______________________________________________<BR>FreeSWITCH-users
mailing list<BR><A
href="FreeSWITCH-users@lists.freeswitch.org">FreeSWITCH-users@lists.freeswitch.org</A><BR><A
href="http://lists.freeswitch.org/mailman/listinfo/freeswitch-users">http://lists.freeswitch.org/mailman/listinfo/freeswitch-users</A><BR>UNSUBSCRIBE:<A
href="http://lists.freeswitch.org/mailman/options/freeswitch-users">http://lists.freeswitch.org/mailman/options/freeswitch-users</A><BR><A
href="http://www.freeswitch.org">http://www.freeswitch.org</A><BR></SPAN></FONT></FONT></BLOCKQUOTE><FONT
face="Calibri, Verdana, Helvetica, Arial"><SPAN
style="FONT-SIZE: 11pt"><BR><BR> <BR>
<HR align=center SIZE=3 width="100%">
<BR><BR>_______________________________________________<BR>FreeSWITCH-users
mailing list<BR><A
href="FreeSWITCH-users@lists.freeswitch.org">FreeSWITCH-users@lists.freeswitch.org</A><BR><A
href="http://lists.freeswitch.org/mailman/listinfo/freeswitch-users">http://lists.freeswitch.org/mailman/listinfo/freeswitch-users</A><BR>UNSUBSCRIBE:<A
href="http://lists.freeswitch.org/mailman/options/freeswitch-users">http://lists.freeswitch.org/mailman/options/freeswitch-users</A><BR><A
href="http://www.freeswitch.org">http://www.freeswitch.org</A><BR><BR>
<HR align=center SIZE=3 width="95%">
</SPAN></FONT></BLOCKQUOTE><FONT size=2><FONT
face="Consolas, Courier New, Courier"><SPAN
style="FONT-SIZE: 10pt">_______________________________________________<BR>FreeSWITCH-users
mailing list<BR><A
href="FreeSWITCH-users@lists.freeswitch.org">FreeSWITCH-users@lists.freeswitch.org</A><BR><A
href="http://lists.freeswitch.org/mailman/listinfo/freeswitch-users">http://lists.freeswitch.org/mailman/listinfo/freeswitch-users</A><BR>UNSUBSCRIBE:<A
href="http://lists.freeswitch.org/mailman/options/freeswitch-users">http://lists.freeswitch.org/mailman/options/freeswitch-users</A><BR><A
href="http://www.freeswitch.org">http://www.freeswitch.org</A><BR></SPAN></FONT></FONT></BLOCKQUOTE>
<P>
<HR>
<P></P>_______________________________________________<BR>FreeSWITCH-users
mailing
list<BR>FreeSWITCH-users@lists.freeswitch.org<BR>http://lists.freeswitch.org/mailman/listinfo/freeswitch-users<BR>UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users<BR>http://www.freeswitch.org<BR></BLOCKQUOTE></BODY></HTML>