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 From:  Lee Azzarello <lee dot azzarello at ps dash solved dot com>
 To:  m0n0wall list <m0n0wall at lists dot m0n0 dot ch>
 Subject:  RE: [m0n0wall] Re: Help with traffic shaping needed
 Date:  Mon, 16 May 2005 20:26:56 -0400
On Mon, 2005-05-16 at 22:21 +0100, Chris Bagnall wrote:

> FWIW, if you're only likely to be running one voice call and your service
> provider supports GSM, you should be able to get away with only dedicating
> about 35kbps to that pipe, which means the hit won't be quite so serious.

Don't forget the TCP overhead for GSM, which in my tests require about
45k. I figured this by looking at the realtime traffic graph on the
m0n0wall interface. FWIW, a single ulaw call required ~85k