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<DIV><FONT face=Arial size=2>Hi</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Thanks for the reply. My customer have Ploycom HDX
9004 at head office and HDX 9001 at branch offices. It will be very helpful if
you provide me more information about these devices.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>regards</FONT></DIV>
<DIV><FONT face=Arial size=2>Syed Khalid Ali</FONT></DIV>
<BLOCKQUOTE dir=ltr
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=pwalenta@wi.rr.com href="mailto:pwalenta@wi.rr.com">Philip
Walenta</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A title=Khalid_Khursheed@hotmail.com
href="mailto:Khalid_Khursheed@hotmail.com">'Syed Khalid Ali'</A> ; <A
title=cisco-voip@puck.nether.net
href="mailto:cisco-voip@puck.nether.net">cisco-voip@puck.nether.net</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Tuesday, December 18, 2007 9:03
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> RE: [cisco-voip] Video Call
Bandwidth requirements</DIV>
<DIV><FONT face=Arial size=2></FONT><BR></DIV>
<DIV dir=ltr align=left><SPAN class=734230016-18122007><FONT face=Arial
color=#0000ff size=2>This is going to greatly depend on how your video
conferences will work.</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=734230016-18122007><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=734230016-18122007><FONT face=Arial
color=#0000ff size=2>Are you doing all sites to a central conference
bridge?</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=734230016-18122007><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=734230016-18122007><FONT face=Arial
color=#0000ff size=2>Are you doing point to point, or is one unit hosting the
conference?</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=734230016-18122007><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=734230016-18122007><FONT face=Arial
color=#0000ff size=2>Based on what you have below I'd say your bi-directional
stream will be in the neighborhood of 650k per unit (keep in mind - many video
codecs have the ability when little motion or sound is occuring to reduce the
outgoing bandwidth. The company I work for (Polycom) can see a 512k
conference drop on our units to as little as ~128k depending on the video
conditions).</FONT></SPAN></DIV><BR>
<DIV class=OutlookMessageHeader lang=en-us dir=ltr align=left>
<HR tabIndex=-1>
<FONT face=Tahoma size=2><B>From:</B> cisco-voip-bounces@puck.nether.net
[mailto:cisco-voip-bounces@puck.nether.net] <B>On Behalf Of </B>Syed Khalid
Ali<BR><B>Sent:</B> Tuesday, December 18, 2007 5:46 AM<BR><B>To:</B>
cisco-voip@puck.nether.net<BR><B>Subject:</B> [cisco-voip] Video Call
Bandwidth requirements<BR></FONT><BR></DIV>
<DIV></DIV>
<DIV><FONT face=Arial size=2>Hi</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Need help regarding video conferencing setup. We
will have 8 site (including head office). The minimum bandwidth per video call
will be 512 kbps. The connections are T1 lines. Currently we have IPSec
VPN with overlay routing over the internet for data. So how do I
calculate the bandwidth for each site if all sites do conferencing
simultaneously.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>My rought estimate is: </FONT></DIV>
<DIV><FONT face=Arial size=2>512k + L3 + L2 + IPSec + GRE</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>regards,</FONT></DIV>
<DIV><FONT face=Arial size=2>syed khalid
ali</FONT></DIV></BLOCKQUOTE></BODY></HTML>