[asterisk-users] Minimum upload speed for Asterisk?

[Michael Graves]

On Thu, 01 May 2008 16:19:26 -0400, Frank Tarczynski wrote:

>I'm running an Asterisk box that's connected to the world via 5MB 
>down/384kB up cable internet service.  I've noticed that the sound 
>quality for both IAX and SIP calls sometimes starts to suffer.  IVR 
>prompts and MOH frequently have slight pauses from the outside, but 
>sound fine from inside calls.
>
>Is 384kB up too slow?

No. But what you can do will depend upon codec selection, QoS & traffic
shaping in your router.

>Is there any guidance for the minimum upload speed for an Asterisk box?

Rough guidance:

G.711 needs approx 80 kbps per call leg
G.729a needs approx 32 kbps per call leg

See www.voip-info.org and search for codecs.

Michael

--
Michael Graves
mgraves<at>mstvp.com
http://blog.mgraves.org
o713-861-4005
c713-201-1262
sip:mjgraves at pixelpower.onsip.com
skype mjgraves
54245 at fwd.pulver.com