[asterisk-users] PSTN Connection

[Lyle Giese]

Brent Vrieze wrote:
> Lyle Giese wrote:
>   
>> Manoj Panicker - FOES wrote:
>>     
>>> Hi
>>>         Which is the best interface card to connect* PSTN* line with 
>>> Asterisk. Can somebody please help. My intention is to route the 
>>> incoming PSTN calls to internal IP Phones through Asterisk and Vice 
>>> versa. The Asterisk is in LAN and is reachable from all the IP phones 
>>> in the LAN.
>>>
>>> Thanks
>>> Manoj
>>>
>>>       
>> That's a wide open question.  How many lines?  What kind of lines?  
>> What country are you in?  What options are availible to you?
>>
>> I only have three incoming lines for a soho Asterisk install.  I 
>> decided on a T1 card and picked up a used channel bank on ebay.  Not 
>> the cheapest way, but it has served me very well.
>>
>> You are not going to get much help unless you define the problem better.
>>
>> Lyle Giese
>> LCR Computer Services, Inc.
>>     
>
> HI,
>
> OK, I'm going to chime in on this one as I am going to set up an 
> Asterisk system for our volunteer ambulance service.  As a part of the 
> Emergency Services we need to maintain a POTS line as redundancy and due 
> to the fact that with an old style phone I don't need power for the 
> phone to work.  I plan on using a SIP provider for the rest of our phone 
> needs.  If not for the emergency services part I would go completely SIP 
> based.
>
> Anyway I would need a FXO/FXS card for use in the US.  Only one line so 
> I don't need any of the fancy 4 line systems.  I have heard you can use 
> certain modems to do this but I would like what I am doing to be 
> seamless and not require hacking at a problem for hours to save $50.  I 
> just want it to work quick and easy.  I am unsure what you mean by "What 
> kind of lines?" and "What options are availible to you?".  Maybe that is 
> part of asking this question, to get some info about the phone system too.
>
> Any help would be grand.
>
> Thanks
>    Brent
>   
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>   
Brent
You have defined what you are going to do, basically a small system and 
only need one POTS line.  You could also use an ATA to convert a POTS to 
SIP to go into the Asterisk box.  That would probably be a more 
supportable solution as those devices don't appear to be disappearing 
off the market like that modem solution is.  Then if in a couple of 
years, lightening takes out the converter, you have a purchasable solution.

You can also do this with Digium cards.

Lyle

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