[asterisk-users] WAS: 64 analog phones NOW: Selection criteria and recipie for a good Asterisk install [long]

Tzafrir Cohen tzafrir.cohen at xorcom.com
Thu Sep 28 13:29:11 MST 2006

On Thu, Sep 28, 2006 at 03:17:15PM -0400, Jeronimo Romero wrote:
> Has anyone tried RedFone?? It is supposed to offload a lot of that bus
> overhead to the external unit doing TDMoE. 

Offloading? What exactly?

A quad E1 (4 E1 cards, much more than is needed for the 64 lines
mentioned in the topic) takes 8Mb of actual data per second, overheade
not included.

It doesn't take much horsepower: A decent single-CPU P4 server could
easily handle the full capacity of that card, assuming that there are no
other load factors such as conferences, compressions and such.

However if you get a network segment into the picture, you now have to
take into account not only your server and the other server, but also
all the network infrastructure in between. E.g.: the switch(es), QoS,

Tzafrir Cohen         sip:tzafrir at local.xorcom.com
icq#16849755          iax:tzafrir at local.xorcom.com
+972-50-7952406          jabber:tzafrir at jabber.org
tzafrir.cohen at xorcom.com     http://www.xorcom.com

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