[Asterisk-Users] Newby question. Basic structure

[Rodolfo Grave]

Hi! and thanks a million for your answer. You hace cleared many of the 
doubts I had, including the differences between the cards. At the same 
time, new questions has arised:

Is there a possible configuration in case I dont have a broadband 
connection in the called-end, for example, a modem connection?

Is it possible to set a route for the IP packages? This is to optimize 
the packets transmission over internet.

I'm outside US, so, why should I use tdm instead of x100p?

Thanks again,

RODOLFO

Rich Adamson wrote:

>>From: Rodolfo Grave <rodolfograve at yahoo.es>
>>
>>I've being reading posts from the list since yesterday and I feel this 
>>question was answered a lot time ago, but the list archives are a mess 
>>(yet). I hope some one is willing to help me out.
>>
>>I want to set up this:
>>
>>caller ----- PSTN ---- (SOMETHING1) ------ VoIP --------- (SOMETHING2) 
>>---- PSTN
>>
>>I think this must be a very basic architecture, but I'm not sure wat 
>>SOMETHING1 and SOMETHING2 are. I've been on this for a while now (around 
>>two months) and till yesterday I haven't find Asterisk.
>>
>>Can you help me? I need to know hardware and software needs for this. I 
>>have read a few about voIP and have some programming and configuration 
>>skills under Linux and Windows.
>>    
>>
>
>In terms of using asterisk to implement your diagram, "something1" and
>"something2" are basic linux boxes equipped with:
> - pstn interface card (such as x100p, tdm, isdn, T1 card)
> - ethernet interface (to connect to your broadband internet)
> - asterisk software
>
>The type of pstn interface card to use will be dependent upon how
>many "simultanous" phone conversations you'd like to support. The
>x100p card is a single pstn line interface; the tdm card supports
>one to four (tdm04b bundle) pstn lines (the tdm card needs to be
>purchased with fxo interface modules); the isdn card supports from
>one to 23 (?) pstn logical interfaces (depending upon the exact
>card purchased); or the T1/E1 card supports from 1 to 24 (T1) or
>1 to 32 (E1-?) conversations. You'll find most of those cards at
>www.digium.com under Hardware Products.
>
>If you are outside the US, consider the TDM card as opposed to
>the x100p card.
>
>The size of Linux system will also be dependent on how many 
>simultanous calls you want to support, and exactly how you have
>the system configured. For a single call, some folks have it
>running on old 300 mhz (and slower) box, while high traffic
>volumes will require a much faster system.
>
>The asterisk software can be found on the digium home page 
>(lower-left menu option), which points to www.asterisk.org
>
>Also, lots of good reference material at www.voip-info.org
>
>After you've configured your system with your favorite Linux
>distro, download and compile asterisk per the instructions found
>on the www.asterisk.org site. Pay attention to the last steps
>on your screen that copies configuration samples to /etc/asterisk.
>Read through those configuration files, read the info at
>www.voip-info.org, and you should be able to get a system
>running.
>
>
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