[Asterisk-Users] Hardware for PBX with 4 incoming/outgoing
lines and 20 phones
Nicolas Gudino
nicolas at house.com.ar
Wed Aug 25 12:54:35 MST 2004
Hello,
Just FYI, we have a small asterisk with 4 x100p cards in a cheap
motherboard and Athlon processor for our office. There is no way to
avoid irq sharing, and we have the ocassional 'chirp' noise. This is the
/proc/interrupts output:
# cat /proc/interrupts
CPU0
0: 1449479 XT-PIC timer
1: 1211 XT-PIC keyboard
2: 0 XT-PIC cascade
3: 12428957 XT-PIC wcfxo
5: 12429375 XT-PIC wcfxo
8: 5 XT-PIC rtc
10: 13250633 XT-PIC eth0, wcfxo
11: 12428834 XT-PIC wcfxo
12: 278 XT-PIC PS/2 Mouse
14: 21213 XT-PIC ide0
NMI: 0
LOC: 1449417
ERR: 5283
MIS: 0
Now I have just setup an old Powermac 9600, its replacing the athlon
box. It is up and running just for 10 minutes. It works fine, and the
/proc/interrupts looks much better:
cat /proc/interrupts
CPU0
2: 0 PMAC-PIC Edge MACE-txdma
3: 67851 PMAC-PIC Edge MACE-rxdma
12: 7 PMAC-PIC Edge 53C94
13: 51368 PMAC-PIC Edge MESH
14: 63266 PMAC-PIC Edge MACE
15: 0 PMAC-PIC Edge SCC
16: 0 PMAC-PIC Edge SCC
18: 2769 PMAC-PIC Edge ADB
19: 0 PMAC-PIC Edge SWIM3
24: 2164186 PMAC-PIC Level wcfxo
25: 2164002 PMAC-PIC Level wcfxo
27: 2163854 PMAC-PIC Level wcfxo
28: 2163665 PMAC-PIC Level wcfxo
BAD: 0
For a small PBX a used powermac might work fine... And I still have one
pci slot to spare...
On Wed, 2004-08-25 at 13:57, spectro wrote:
> IMHO, If you plan to use analog phones the cheapest is to buy a bunch
> of sipuras instead of TDM40B. (TDM40B = 4 FXS for $300, $75 each;
> sipura SPA2000 = 2 FXS for $100, $50 each)
>
> Order one TDM04B (4 FXO) and 1 Sipura 2000 for each 2 analog extensions.
>
> You can also mix it up, lets say drop two incoming lines and order a 2
> FXS, 2 FXO TDM instead. Then subscribe to a VoIP provider like
> Voicepulse Connect to dial-out through IAX.
>
> Use the FXS on the TDM for fax machines and make these the only to
> dial-out through the analog outgoing lines.
>
> Of course, I would rather buy some IP phones instead of analog ones through FXS.
>
> For your remote office, depending on the number of extensions, you can
> either setup a small asterisk box or just use Sipuras 3000 and 2000
> connected to your main office's asterisk server.
>
>
> On Tue, 24 Aug 2004 17:11:36 -0600, Andrew Elchuk
> <aelchuk at cronustech.com> wrote:
> > Hi
> >
> > I am interested in setting up an Asterisk PBX in my office with digium
> > hardware, and I just have a few questions in regards to what I would
> > need. It is my understanding that an FXO card is used to interface with
> > an incoming/outgoing phone line, and an FXS card is used for interfacing
> > with a phone within the system. Currently we have 4 incoming/outgoing
> > phone lines and would like to have 20 phones in the system. In order to
> > accomodate this, would you either reccommend having 1 TDM04B (4 FXO
> > modules on it) for the 4 incoming/outgoing lines, and 5 TDM40B (4 FXS
> > modules on each) for the 20 phones we would have in the system. Or
> > would you reccommend 1 TDM04B for the 4 incoming/outgoing lines, and a
> > T100P connected to a channel bank of some sort to connect to the
> > internal phones? If you reccommend the T100P and channel bank, where do
> > you suggest I get an FXS channel bank? Please let me know if I got any
> > of this mixed up (like if I got the FXO and FXS cards mixed up) and
> > thank you in advance for your help in us deciding the hardware we need
> > for a new PBX.
> >
> > Andrew Elchuk
> >
> > P.S. We are currently using an X-Like software phone with a free world
> > dialup account for communication with our other office in a different
> > city. My question is if I can configure the extensions.conf to connect
> > to a free world dialup number when executing a dial command, or would I
> > need to edit sip.conf as well or some other configs or is that even
> > possible? Thank you again.
> >
> > --
> > Andrew Elchuk
> > Technical Associate
> > Cronus Technologies
> > 248 - 111 Research Drive
> > Saskatoon, SK S7N 2X8
> > Tel: (306) 652-5798 ext. 112
> > Fax: (306) 652-5799
> > Toll Free: 1-877-655-5798
> > http://www.cronustech.com
> >
> > _______________________________________________
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> >
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--
Nicolas Gudino <nicolas at house.com.ar>
House Internet S.R.L.
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