No subject

depends on where you are in the world. Generally speaking, somewhere 
around 8 to 12.

There are many advantages to PRI over POTS:

) "Instantaneous" call setup.

) Higher reliability.

) Less cabling behind the server.

) Better support from your provider.

) More features.

) Better audio quality.

IMO, you should always use a PRI unless you can't afford it.

-- 
Thanks in advance,
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Steve Edwards       sedwards at sedwards.com      Voice: +1-760-468-3867 PST
Newline                                              Fax: +1-760-731-3000