[Freeswitch-users] send fax via google voice.

[Madovsky]

Re: [Freeswitch-users] send fax via google voice.I think it's more hard for a guy to hack your US pstn line if he lives
in Australia... fax on internet can be hacked from everywhere...
  ----- Original Message ----- 
  From: Ken Rice 
  To: FreeSWITCH Users Help 
  Sent: Sunday, March 06, 2011 11:55 AM
  Subject: Re: [Freeswitch-users] send fax via google voice.


  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...

  If it were about security, fax machines would actually encrypt a fax but they don't... 


  On 3/6/11 1:55 AM, "envelopes envelopes" <sunwood360 at gmail.com> wrote:


    that is not true.

    Real estator/law firm/accounting offices/travel agents...many of them still prefer fax for security reasons.
    I am always worried about sending my driver license pdf file via e-mail.



    On Sat, Mar 5, 2011 at 11:34 PM, curriegrad2004 <curriegrad2004 at gmail.com> wrote:

      That's why PDF's/XPS/tiff's have replaced fax completely. Not many
      people out there still do have a fax machine :)

      On Sat, Mar 5, 2011 at 10:56 PM, Ken Rice <krice at freeswitch.org> wrote:
      > Ok
      >
      > will sending a fax over it work... The answer is yes it will work..
      > will it work reliably, no
      >
      > Faxing just needs to die already...
      > The problem you have here with Faxing over G711 (PCMU or PCMA) is that
      > faxing uses a modem to encode a digital signal into an analog carrier meant
      > for a circuit switch voice network with a constant amount of delay and
      > guaranteed delivery of the entire analog stream
      >
      > VoIP by definition is Voice Over Internet Protocol... IP is a packet
      > switched network, where you can no guarantee a constant amount delay
      > (latency) ... Not to mention it is not common to see a udp packet or 2
      > missing along the way.
      >
      > Where as 1 20ms packet may not seem like much to you, that's roughtly
      > equivalent to 575bytes of data in the fax and it will screw up the fax
      > either causing a corruption of the data, or a drop in the analog modem
      > carrier which requires a retrain...
      >
      >
      >
      >
      > On 3/5/11 11:35 PM, "envelopes envelopes" <sunwood360 at gmail.com> wrote:
      >
      > ok,
      >
      > Reliability is a different issue. I am just wondering whether mod_dingaling
      > supports fax via GV. because someone proved sending fax via GV from fax
      > machine did work
      > .(http://www.magicjacksupport.com/faxing-via-google-voice-t7412.html).
      >
      >
      >
      > On Sat, Mar 5, 2011 at 9:18 PM, curriegrad2004 <curriegrad2004 at gmail.com>
      > wrote:
      >
      > And relativity comes into play too.
      >
      > Also you do need to realize that the packets sent via UDP isn't
      > guaranteed to be in order as the fax machine expects the data to be
      > sent in order, not out of order. That's the beauty of packet switched
      > networks.
      >
      > On Sat, Mar 5, 2011 at 7:29 PM, Steve Underwood <steveu at coppice.org> wrote:
      >> On 03/06/2011 11:21 AM, envelopes envelopes wrote:
      >>>
      >>> Why is PCMU codec not reliable?
      >>>
      >>>
      >> Unsynchronised clocks, and packet loss.
      >>
      >> Steve
      >>
      >>
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