On Mon, 15 Jun 2015, lu...@sulweb.org wrote:
I'm new here and I'm interested in building a small PBX with asterisk at
home. I have one single PSTN line and ethernet cabling in place. I
already have fairly decent PC that I can use (AMD FX 8350 16GB of RAM
and RAID 10 SATA disks). I make and receive 10 calls a day on average. I
want 4 IP phones connected to the ethernet network. When there is a
incoming call, all phones must ring and the first that takes the call
makes the others stop ringing, but lets them available for internal
calls.
Given the requirements above, what's a cheap but working PCIe card / USB
adapter I could buy for this kind of PBX? Do I need things like echo
cancellation? Do I need FXS ports?
I don't know this 'translates' to Italy, but this is what I would advise
somebody in the US to consider, assuming you have a reliable Internet
connection.
0) I hope you mean you want to run Asterisk at home instead of 'Asterisk
at Home.' A@H was an ancient distribution from around 2005.
1) Rent a DID (a 'PSTN number') from a reputable SIP provider. This
eliminates the need for a PCI/USB interface and you won't disrupt your
'business' while you figure out how to configure and test your Asterisk
server.
In the US, you can rent a DID for about $1.50 per month and about a $0.01
per minute of 'talk time.' For 10 calls per day, this should beat the hell
out of a 'landline' monthly standing fee.
In the US, it costs less than $20.00 to 'port' your existing number if you
are really in love with it.
2) Ditch the 'room warmer' and find something really small and cheap to
run. I live in San Diego and we pay $0.32 per kWh. I'd guess running your
rig would cost me $50.00 to $100.00 per month just in electricity -- and
probably that much again in the summer for additional Air Conditioning.
Take a look at Soekris net4801. It's pretty old (but very reliable) and
it's CPU will limit you on what OS you can run, but it will give you an
idea of how small (and cheap to power) an 'Asterisk server' capable of
handling a couple of simultaneous calls can be.
For a more modern server, look for something small and cheap based on
something like an Atom processor. Maybe a used laptop. If the battery is
still good, you've solved your UPS problem as well. Although, if you lose
power, you've probably lost your Internet connection as well so you could
only make calls between extensions.
3) For the IP phones, check out ebay.com. Last year, I picked up 3 Polycom
SP 501's for $20.00 each. A little dated, but a great phone.
--
Thanks in advance,
-------------------------------------------------------------------------
Steve Edwards sedwa...@sedwards.com Voice: +1-760-468-3867 PST
Newline Fax: +1-760-731-3000
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