Actually about 80k-82k when you take into account UDP and RTP overhead and assume you are using SIP. Single IAX2 call may be a little less. multiple IAX2 calls using trunking will be a lot less.

In fact, this question is answered on http://www.digium.com/index.php?menu=documentation
specifically the link to http://www.packetizer.com/voip/diagnostics/bandcalc.html


Unfortunatly the above URL is not terribly clear and understandable.

People complain about Asterisk's lack of good, organized, understandable documentation. It might help if they actually used the documentation and links that ARE available.

Here we have an example of one person that didn't do the research (understandable, since he/she might not have known about the Documentation link on Digium's web site) and then asked a question and then another person that ALSO didn't do the research (I'm guilty of this too, but am getting much better) but answered the question anyway.

William Boehlke wrote:
The simple answer is 64KB.


-----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Bernie Sent: Monday, April 04, 2005 4:40 PM To: Asterisk Users Mailing List - Non-Commercial Discussion Subject: [Asterisk-Users] bandwidth

how much bandwith is used to go between a phone set and the asterisk server
when a call is in progress?  Just trying to plan out a system and need some
figures to plan on bandwidth allocation.
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