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<DIV><FONT size=2 face=Arial>Dear iptel,</FONT></DIV>
<DIV><FONT size=2 face=Arial></FONT> </DIV>
<DIV><FONT size=2 face=Arial>Thankyou for your open source website and excellent
information. I hope you are able to help me with the following.</FONT></DIV>
<DIV><FONT size=2 face=Arial></FONT> </DIV>
<DIV><FONT size=2 face=Arial>We are an Australian organisation. We are
trying to find a good quality SIP provider, commercial grade, with high
connectivity success rates. We have used Skype, and it works incredibly
well. It gets through your firewall and succeeds with login and successful voice
and video call connection just about every time. But every public or commercial
SIP Service I have used has failed to perform as well. Both the open source and
the commercial SIP servers all suffer from the same problems:</FONT></DIV>
<UL>
<LI><FONT size=2 face=Arial>they don't login unless you open up port 5060 on
your firewall, regardless of whether STUN or TURN or ICE is in use</FONT></LI>
<LI><FONT size=2 face=Arial>they don't reliably connect each call, sometimes
the calling end just keeps ringing, and the receiving end doesn't
ring</FONT></LI>
<LI><FONT size=2 face=Arial>even if a call gets connected, they often have one
of the 4 A/V streams missing, eg. we get video and outgoing audio, but no
incoming audio </FONT></LI>
<LI><FONT size=2 face=Arial>when one party hangs up, sometimes the other end
sometimes doesn't know about it and just sits there thinking the call is still
underway</FONT></LI>
<LI><FONT size=2 face=Arial>when the Internet is busy, eg. at 4pm when
children get home from school and jump on the Internet, their media relays
struggle to keep up and UDP streams are badly degraded</FONT></LI></UL>
<DIV><FONT size=2 face=Arial>Note that we have not yet tried iptel.org, but
I note that video is not talked about much on your website, and also you are an
open source organisation, who cannot be expected to provide a commercial grade
service. (If I am wrong about this, please tell me and I will certainly give
iptel.org a try!)</FONT></DIV>
<DIV><FONT size=2 face=Arial></FONT> </DIV>
<DIV><FONT size=2 face=Arial>Using Jitsi, Linphone, and many other
softphones, we have tried ....</FONT></DIV>
<UL>
<LI><FONT size=2 face=Arial>ippi.fr</FONT></LI>
<LI><FONT size=2 face=Arial>jumblo.com</FONT></LI>
<LI><FONT size=2 face=Arial>pennytel.com</FONT></LI>
<LI><FONT size=2 face=Arial>opensips.org</FONT></LI>
<LI><FONT size=2 face=Arial>sip.linphone.org</FONT></LI>
<LI><FONT size=2 face=Arial>an Australian commercial VoIP service by MyNetFone
(works very well, but voice only)</FONT></LI></UL>
<DIV><FONT size=2 face=Arial>We are a business, and we are prepared to pay for a
SIP Service. We cannot use ooVoo, Tango, Goober, ippi Messenger and other closed
applications. We have to use an open source softphone such as Jitsi or Linphone,
because they have an API. So my questions are ....</FONT></DIV>
<UL>
<LI><FONT size=2 face=Arial>Are you aware of any commercial grade SIP
providers that work as well as Skype:</FONT></LI>
<UL>
<LI><FONT size=2 face=Arial>they have STUN / TURN / ICE support in
place</FONT></LI><FONT size=2 face=Arial>
<LI><FONT size=2 face=Arial>they support both video and audio
calls</FONT></LI>
<LI>login occurs reliably:</LI>
<UL>
<LI>regardless of where I am located (at home, at work, on my smartphone,
using WiFi at a hotel, etc.)</LI>
<LI>regardless of what firewall I am behind</FONT></LI></UL>
<LI><FONT size=2 face=Arial>call connection occurs reliably, regardless of
where I am located and regardless of firewall</FONT></LI>
<UL>
<LI><FONT size=2 face=Arial>every call always connects</FONT></LI>
<LI><FONT size=2 face=Arial>if codecs at each end match, the call
successfully connects audio and video streams both ways</FONT></LI>
<LI><FONT size=2 face=Arial>when one party hangs up, the other end knows
about it and doesn't just sit there thinking the call is still
underway</FONT></LI></UL>
<LI><FONT size=2 face=Arial>their servers and infrastructure performs well
even at peak periods, for example at 4pm when all the children get home from
school and jump on the Internet</FONT></LI>
<LI><FONT size=2 face=Arial>they have high performance media relays in
place, so that audio and/or video can be relayed if required</FONT></LI></UL>
<LI><FONT size=2 face=Arial>If </FONT><FONT size=2 face=Arial>no company or
organisation offers a SIP Service that performs as well as Skype, can you
recommend any company or individual that we can engage (pay) to establish our
own SIP Service. They must have the skills to setup SIP Server, STUN Server,
TURN Server, and to adjust ports and settings so that anybody can login and
make a call from anywhere, behind any firewall.</FONT></LI></UL>
<DIV><FONT size=2 face=Arial></FONT> </DIV>
<DIV><FONT size=2 face=Arial>Your recommendations would be very much
appreciated.</FONT></DIV>
<DIV><FONT size=2 face=Arial></FONT> </DIV>
<DIV><FONT size=2 face=Arial>Thankyou,</FONT></DIV>
<DIV><FONT size=2 face=Arial>Karl Grimm.</FONT></DIV>
<DIV>
<HR>
<P style="LINE-HEIGHT: 100%; TEXT-INDENT: 0px; MARGIN: 0px; WORD-SPACING: 0px"
class=MsoNormal align=left><B><SPAN
style="FONT-FAMILY: Arial, sans-serif; COLOR: windowtext; FONT-SIZE: 10pt">Karl</SPAN><SPAN
style="FONT-FAMILY: 'Arial','sans-serif'; COLOR: windowtext; FONT-SIZE: 10pt">
</SPAN></B><SPAN
style="FONT-FAMILY: 'Arial','sans-serif'; COLOR: windowtext; FONT-SIZE: 10pt"><B>Grimm</B>,
Managing Director<B><BR></B>Mobile: 0418 310 989 | <A
href="mailto:karl@konnekt.net.au">karl@konnekt.net.au</A> </SPAN></P>
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