[Asterisk-bsd] Full length cards

[William Lloyd]

If you try to run 90 phones off a PC power supply you are asking for  
trouble.  It took years for digium to get the 4 analog port stuff to  
work properly in a PC let alone 24 channels.

While in theory it will work, you are going to have MAJOR problems in  
practice.

I gave up trying to build solid production systems from analog cards  
in PC.  If the project doesn;t have enough money to do the job  
properly then I wouldn;t touch it.

If you are charging by the hour for installation and support and the  
customer has limitless patience, you've hit upon a goldmine ;-)

Used FXS channel banks can be found for a few hundred $.

-bill


On 14-Nov-05, at 7:34 AM, Jeff LaCoursiere wrote:

>
>
> On Mon, 14 Nov 2005, Kim Culhan wrote:
>
>
>>  There seems to be a little confusion in this thread.. The  
>> original posting
>> asked about using 4 TDM4xx cards to get ~90 FXS ports.
>>  I think Jeff meant TE4xx cards which are T-1/E1 interfaces.
>>  As for the TDM400P on FreeBSD, this should be no problem.
>>  Just use the zaptel-bsd drivers on FBSD 6.0-RELEASE or 6.0-STABLE.
>>  If anyone needs any help getting the source of this and  
>> compiling, let me
>> know.
>>
>
> Actually I did mean 4 x TDM400P to get ~90 FXS ports :)  I was  
> wondering
> if anyone had attempted this in one chassis...  I am considering  
> bidding
> on a hotel's phone system upgrade, and cost per port is very  
> important,
> obviously.  I think I see three ways to reach their 90 rooms with  
> existing
> cabling and analog phones.  I can use T1 interfaces and channel  
> banks, and
> with some of the pricing I have dug up so far this seems to be  
> around $100
> / port.  I can use 4 x TDM400P (?) and get it down to $60.  Then a  
> perhaps
> hoky idea was to use around 50 dual FXS ATA devices, which potentially
> gets it down to $35.  I say potentially because I haven't used many of
> these devices, and don't know if the sound quality of an  
> inexpensive ATA
> is sufficient?  Also this only makes sense if PoE is possible,  
> which is
> something I haven't seen in literature on ATAs.
>
> I saw Kim's earlier post about drivers for TDM4xx, which is what  
> prompted
> the question, actually.
>
> So, are the drivers for FBSD6 production stable?  Would I be giving  
> myself
> headaches to install this for a client?  I would hate to fall back to
> Linux, but stability is primary...
>
> Thanks!
>
> j
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