[cisco-voip] Video Call Bandwidth requirements

[Syed Khalid Ali]

Hi

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.

regards
Syed Khalid Ali
  ----- Original Message ----- 
  From: Philip Walenta 
  To: 'Syed Khalid Ali' ; cisco-voip at puck.nether.net 
  Sent: Tuesday, December 18, 2007 9:03 PM
  Subject: RE: [cisco-voip] Video Call Bandwidth requirements


  This is going to greatly depend on how your video conferences will work.

  Are you doing all sites to a central conference bridge?

  Are you doing point to point, or is one unit hosting the conference?

  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).



------------------------------------------------------------------------------
  From: cisco-voip-bounces at puck.nether.net [mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Syed Khalid Ali
  Sent: Tuesday, December 18, 2007 5:46 AM
  To: cisco-voip at puck.nether.net
  Subject: [cisco-voip] Video Call Bandwidth requirements


  Hi

  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.

  My rought estimate is: 
  512k + L3 + L2 + IPSec + GRE

  regards,
  syed khalid ali
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