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<DIV><FONT size=2>I think it's more hard for a guy to hack your US pstn line if
he lives</FONT></DIV>
<DIV><FONT size=2>in Australia... fax on internet can be hacked from
everywhere...</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 11:55
AM</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">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="mailto:sunwood360@gmail.com">sunwood360@gmail.com</A>>
wrote:<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></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>>>
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