[Asterisk-Users] Using a TE405P to connect to an existing PBX

[drodden]

Sorry guys. Wrong model, I meant a T100P card. I have 1, and can order
another if we get this one working. I could use 1 server, or 2. 
Sorry, I am a little confused on the lingo. I understand that what we
have is 3 T1 PRI links, from 3 different carriers. That's how it was
described to me. There are 23 phone lines and 1 Data Channel, the B
Chan, thus it supports Caller ID and such. We have an old old old AT&T
voice T1 that has 24 phone lines, no Data channel, thus no caller ID.
The PBX we're trying to interface to has 2 T1 PRI's plugged into it.  


>From our Cisco config:

isdn switch-type primary-ni

controller T1 0/0
 framing esf
 linecode b8zs
 pri-group timeslots 1-24
 description IDS - #1

interface Serial0/0:23
 no ip address
 no logging event link-status
 isdn switch-type primary-ni
 isdn incoming-voice modem
 isdn map address . plan isdn type national
 no cdp enable


That's basically the Cisco conf for the same type of T1 circuit we
ordered for that other location.

We have two of these at the other location. I want to be able to emulate
this with 1 or two T100P cards, in 1 or 2 different servers, depending
on how much redundancy that location wants.



On Fri, 2004-08-13 at 17:30, Peter Svensson wrote:
> On Fri, 13 Aug 2004, drodden wrote:
> 
> > We originally purchased a TE405P so we could connect our Asterisk server
> > directly to the T1 PRI from our provider, however due to all the
> > problems reported with T1 PRI's interacting directly with Asterisk, we
> > scrapped that idea and decided to stick with our Cisco router making the
> > conversion to SIP. 
> 
> We use a pri without any real problems. YMMV.
> 
> > Anyways, we found a new potential use for it. We have an old location
> > with an existing PBX, and they want to be able to "share" our PRI's here
> > and make calls to our location without tying up phone lines. Their
> > existing PBX system has 2 PRI's from some telco running into it. If I
> > put 1 or 2 TE405P's inside a decent machine, can it "trick" their PBX
> > system into thinking it's talking to a standard PRI? Essentially be a
> > FXS port instead of an FXO port? Looking at the zaptel.conf file and it
> > seems as simple as using fxoks vs fxsks? And then using a T1 crossover
> > cable to get a link?
> 
> I think you have confused a digital trunk line and a PRI. A PRI runs isdn 
> signalling (pri_cpe or pri_net depending on which end of the link it is 
> on). If your equipment is pri then you will probably be able to connect it 
> to a te405p. Configure one port for pri_net and one for pri_cpe and 
> connect appropriatly. A crossover cable will be needed somewhere.
> 
> > The documentation I've found on configuring a TE405P isn't very
> > detailed, does anybody have a link to some more in depth instructions
> > with lots of examples? Do you recommend 2 cards in one server, or 2
> > different servers?
> 
> One te405p handles 4 t1/e1 links, giving 92/120 B channels. If you need 
> more than that (it does not sound like that from your description) you 
> will probably need more than one machine. At least that seems to be the 
> concensus on this mailing list.
> 
> Peter
> 
> 
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