[RESOLVED] Can this replace expensive PCI cards?


#1

Hi!

I’m looking to build an affordable Asterisk system with 1 “real” phone line, and 2 regular phones. We will also use VOIP for outbound calls.

Can this thing (http://www.telephonyware.com/telephonyware/tw00222.html) replace expensive Digium cards? I’m a total newbie, but from what I understand, I can connect 1 phone line and 2 telephones to it.

Thanks for your help!

Carl
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#2

How are three 80 dollar sip atas cheaper than one tdm21b?


#3

Why would I need 3?

According to the specs, it has:

Dual FXS port for connecting analog telephones and fax machines

Single FXO port for connection to analog trunk lines

Maybe I’m misunderstanding something?

Thanks!


#4

Go with Sipura 3000 instead of Grandstream HT-488.

Even though it only has a single FXS port (for one telephone), there are success reports of using it as a PSTN gateway for Asterisk.

There are no such reports for the HT-488, and I have been singularly unsuccessful trying to get it to work.

I have been very successful with their FXS adapters, but I cannot get it
to work for FXO.

But if you can afford it, a Digium TDM21B for $240 would definitely be the best choice if you can run phone wire from your Asterisk box to where the phone needs to be.


#5

Thanks for your reply!

I have a one little question… the SPA-3000 has 1 FXO and 1 FXS. Let’s say I decide to upgrade my system later and get a second SPA-3000, that will mean I can plug 2 phone lines and 2 telephones in the system, right?

My question is, will Phone 2 (2nd card) be able to talk over Line 1 (1st line)? Can the computer route conversations from one unit to another?

I assume so, but I couldn’t find that information…

Thanks!