[asterisk-biz] PRI vs SIP vs ???

[David Knell]

Hi Brian,

> Gotta client that is moving to a VoIP PBX.  Will need 10 concurrent
> calls with ability to grow to 15.
> Which is better:
> a)     Traditional PRI with unlimited Local, use Least Cost Routing
> for Long Distance via SIP trunks via the Internet
> OR
> b)     Flat rate SIP trunks which includes unlimited  Local and Long
> Distance (no T1 card needed), riding on Dedicated DSL or Internet T1

Option (a) gives you diversity - ask yourself just how bad it'd be if
their phone system went down because their DSL line wasn't working, and
then balance this against the extra cost of the PRI.

--Dave


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-- 
David Knell, Director, 3C Limited
T: +44 20 3298 2000
E: dave at 3c.co.uk
W: http://www.3c.co.uk