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<DIV dir=ltr align=left><SPAN class=254163320-14092004><FONT face=Arial
color=#0000ff size=2>A full E1 is a LOT of bandwith to try and push over a
satellite link. </FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=254163320-14092004><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=254163320-14092004><FONT face=Arial
color=#0000ff size=2>John Todd has reported success with calls via satellite.
</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=254163320-14092004><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=254163320-14092004><FONT face=Arial
color=#0000ff size=2>The primary problem you face with a satellite link is, or
course, latency.</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=254163320-14092004><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=254163320-14092004><FONT face=Arial
color=#0000ff size=2>There are ways of improving QoS over satellite links.
</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=254163320-14092004><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=254163320-14092004><FONT face=Arial
color=#0000ff size=2>Paul</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=254163320-14092004><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV>
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<TD vAlign=top width=180 height=102><B><FONT face=Verdana size=1><BR>Paul
Mahler</FONT></B><FONT face=Verdana size=1> <BR><A
href="mailto:pmahler@signate.com"><FONT
color=#c0c0c0>pmahler@signate.com</FONT></A><FONT color=#c0c0c0>
</FONT></FONT></TD>
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color=#c0c0c0>Signate, LLC</FONT></B><FONT color=#c0c0c0><BR>665 Third
Street<BR>Suite 100<BR>San Francisco,
CA<BR> 94107-1901</FONT><BR><BR> <FONT
color=#c0c0c0>Asterisk</FONT><FONT color=#c0c0c0> Services and
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<FONT face=Tahoma size=2><B>From:</B> asterisk-users-bounces@lists.digium.com
[mailto:asterisk-users-bounces@lists.digium.com] <B>On Behalf Of </B>Arinze
Izukanne<BR><B>Sent:</B> Monday, September 13, 2004 7:24 PM<BR><B>To:</B>
Asterisk Users Mailing List - Non-Commercial Discussion<BR><B>Subject:</B> Re:
[Asterisk-Users] Extending E1's over a Satellite link<BR></FONT><BR></DIV>
<DIV></DIV>
<DIV>OK. What I am thinking is, It is possible to install a server
running Asterisk on each end of the Satellite link, with an E1 card in
each Asterisk; and the boxes are configured to pick up incomming calls
on the E1 channels and pass them to the other box across the link to the other
Asterisk PBX which in turn completes the call via the PSTN E1 on that
side.</DIV>
<DIV> </DIV>
<DIV>Basically the aim is to provide a solution that works similar to RAD's
VMUX but using Asterisk as the engine.</DIV>
<DIV> </DIV>
<DIV>I expect there would be codec translation along the way.</DIV>
<DIV> </DIV>
<DIV>I have this concept but how to implement it is another issue. I need
someone who has experience with Asterisk already to tell me how feasible this
is and to what extent it would achieve the aim of reducing bandwidth and
maintaining minimal latency.</DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV>Best regards</DIV>
<DIV> </DIV>
<DIV>Arinze</DIV>
<DIV><BR><BR><B><I>Kannaiyan Natesan <nkans@speak2world.com></I></B>
wrote:</DIV>
<BLOCKQUOTE class=replbq
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<DIV><FONT size=2>asterisk is a pbx software. I don't think there is
a compression and uncompression utility except codec conversions. Even
in those cases you can be sure that there will be loss of data as there is
no lossless compression.</FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT size=2>If you have any satellite transmission and reception card
which can be interfaced for voice communication with asterisk kindly share
your views here, we can discuss more on that.</FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT size=2>Asterisk sends calls over internet very efficiently by
reducing the ethernet overhead and the channel overheads and that is only in
IAX protocol. May be this you can consider to extend for satellite
communication.</FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT size=2>If you have more information kindly let us know about it
whether anything of the above matches to your interest.</FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT size=2>-Kannaiyan</FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<BLOCKQUOTE
style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=aizukanne@yahoo.co.uk href="mailto:aizukanne@yahoo.co.uk">Arinze
Izukanne</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A
title=asterisk-users@lists.digium.com
href="mailto:asterisk-users@lists.digium.com">asterisk-users@lists.digium.com</A>
</DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Monday, September 13, 2004
11:41 PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> [Asterisk-Users] Extending
E1's over a Satellite link</DIV>
<DIV><BR></DIV>
<DIV>hi</DIV>
<DIV> I want to compress and trunk 2E1 capacity over a satellite
SCPC link using asterisk. I am nw to asterisk and I need suggestions
on how to implement this.</DIV>
<DIV> </DIV>
<DIV>Best regards</DIV>
<DIV> </DIV>
<DIV>Arinze </DIV>
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