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Mitel Forums => Mitel MiVoice Business/MCD/3300 => Topic started by: denis on November 14, 2010, 06:39:47 PM

Title: Bandwidth Required Per Call
Post by: denis on November 14, 2010, 06:39:47 PM

How much bandwidth is required for a single call over a WAN?

Title: Re: Bandwidth Required Per Call
Post by: v2win on November 14, 2010, 09:00:29 PM

What type of WAN link?

ATM Frame Relay Serial?

G711 or G729?

Title: Re: Bandwidth Required Per Call
Post by: Chakara on November 14, 2010, 09:08:22 PM

  Depends on if you have compression or not.  G.711 is without compression and G.729 is with compression.  The below is stolen from Cisco (don't hate me!)

  I think only the top 2 rows apply in Mitel land...
http://www.cisco.com/en/US/tech/tk652/tk698/technologies_tech_note09186a0080094ae2.shtml (http://www.cisco.com/en/US/tech/tk652/tk698/technologies_tech_note09186a0080094ae2.shtml)

Title: Re: Bandwidth Required Per Call
Post by: bobcheese on November 15, 2010, 01:46:16 PM

There is a table in the eng guidelines for this but in short, depending on link type and packet rate between 80-120Kbps for G711 (uncompressed) and 20-80Kbps G729 (compressed) on the wire.

Title: Re: Bandwidth Required Per Call
Post by: v2win on November 16, 2010, 01:49:43 PM

I have a spreadsheet I use for Nortel VOIP deployments that I can get you or if Chakara can allow a excel file upload

Title: Re: Bandwidth Required Per Call
Post by: ralph on November 17, 2010, 08:35:56 AM

V2win,
Also give me a copy.  I'll post it at www.aavoicepro.com/nortel (http://www.aavoicepro.com/nortel)

Ralph

Title: Re: Bandwidth Required Per Call
Post by: Chakara on November 17, 2010, 10:12:13 AM

  Here is the spreadsheet - pretty nice!   

http://www.mitelforums.com/forum/downloads/VoIP_Bandwidth_Demand_Calculator_v2-3.xls (http://www.mitelforums.com/forum/downloads/VoIP_Bandwidth_Demand_Calculator_v2-3.xls)

  Thanks V2win!

-Chak