[Asterisk-Users] Channel Bank configuration

Fri Jul 11 01:39:39 MST 2003

On Thu, 2003-07-10 at 23:12, Marty Mastera wrote:
> Steven:
> 
> Thank you for your response.
> 
> I do want to continue using the Adit for the data...
> 
> In terms of routing the FXO, I would either want to route 1-10 from the
> Adit to *, or 1-12 (not sure how much I would gain/lose from having the
> fax and analog phone jacks direct from Adit or via *)...
> 
> For the desk phones, there are only a maximum of 6 extensions, and the
> Adit is equipped with an 8 port FXS card.  So I think what you were
> recommending is routing 1-10 from Adit to *, then map the 6 extensions
> back from * to the Adit FXS card?
> 
> The Adit is provider owned and on their side of the dmark (as far as I
> know), so I realize that I would not be able to configure it in this case 
> and would have to have them do it.
> 
> Do this sound accurate?

Sounds accurate. You may get lucky and they will let you route some
channels back to the ADIT. 

BTW, in your other message, you ask about phones. Your NEC phones won't
be usable. Transfer and hold are dealt with via the flash and dial an
extension. CallerID is normal caller id, so for these 3 functions you
just need a nice looking phone to put on the desk. I found some AT&T
phones that I like for my office at about $30. Of course the other thing
you will have as an option is cordless phones. From my ADIT at home I
now have a large collection of cordless phones attached. Thank ebay for
the half of my phone system not produced by Digium.

I'll try and get some pictures of my home system up on my webpage
tomorrow.   

> On 10 Jul 2003 20:58:13 -0500 Steven Critchfield wrote:
> 
> > On Thu, 2003-07-10 at 18:33, Marty Mastera wrote:
> > > Hello,
> > > 
> > > I don't have any experience with channel banks and would appreciate any
> > > feedback on my theory outlined below:
> > > 
> > > We have a single T1 entering the building with channels 1-12 being voice
> > > lines and 13-24 being a 768k internet connection.  This T1 terminates to
> > > an Adit 600 (T1-1). 
> > > 
> > > Here's what I know.  Channels 11-12 go out the Adit 600's 25-pair
> > > connector to a wiring block (and eventually to 2 fax machines - I assume
> > > this is to have the fax machines bypass the currently installed phone
> > > switch).  The data comes out the Router card on the Adit and into
> > our network.
> > > 
> > > The currently installed phone system is an NEC NEAX2000 IVS box which is
> > > connected by CAT5 to the Adit 600's T1-2 port.  (I am assuming that 
> > voice 
> > > channels 1-10 are mapped to the Adit T1-2 and getting to the NEC this
> > > way....There is also a 25 pair cable leaving the NEC and
> > terminating on a 
> > > wiring block for the desk phones.
> > > 
> > > So my assumption is that channels 1-10 are mapped as FXO onto the Adit's
> > > 2nd T1 port, channels 11-12 to the Adit's 25-pair connector and 13-24 to
> > > the router card for data.
> > > 
> > > This leaves the NEC box to handle the FXS (and hence why it is directly
> > > connected to the phones).
> > > 
> > > When I replace the NEC box with an * box/T100P, I'm thinking that I will
> > > have to map Channels 1-12 to the T1-2 port and map the 8 Adit FXS
> > > channels on the T1-2 port to the Adit's 25-pair for the Adit's FXS
> > > capability....then run that T1 into the T100P and configure * to route
> > > between the FXO and FXS channels appropriately.
> > > 
> > > Does this sound right?  I'm trying to understand if the channel
> > bank uses 
> > > the T1 from the Adit for both FXO and FXS channels!
> > 
> > 
> > This depends on what you are allowed to do and what you wish to
> > accomplish. 
> > First: Who owns the ADIT? 
> > a. If it is your telco, then you need to find out where they think the
> > dmark is. Basically you need to know if you can configure the ADIT.
> > 
> > b. If you own the ADIT, then you can proceed.
> > 
> > Second: You need to think about what you want do with it. Linux with a
> > T100P can be your router, and therefore you can take the T1 from the
> > wall and plug it straight into the T100P and configure linux to be your
> > router. Then you need to bring your lines back out to go to phones. How
> > many extension phones do you need to use, and how many FXS ports do you
> > have on the ADIT? You mentioned only dropping 2 lines out of the ADIT
> > currently, and you mentioned 8 FXS channels. Sounds like you will
> > probably need more FXS cards.
> > 
> > The downside of using linux to be your router is that you will need a
> > second T100P or a T400P card to have enough channels to get stuff done.
> > If you want to continue using the ADIT router, then you can route the 10
> > channels off the ADIT to asterisk, and then you can route up to 14
> > channels back to the ADIT to be combined with the 2 you already have
> > being dropped off to the FAX machine. This means you will need to make
> > sure you have at least 2 FXS cards.
> > -- 
> > Steven Critchfield <critch at basesys.com>
> > 
> > _______________________________________________
> > Asterisk-Users mailing list
> > Asterisk-Users at lists.digium.com
> > http://lists.digium.com/mailman/listinfo/asterisk-users
> 
> 
> 
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-- 
Steven Critchfield <critch at basesys.com>