sundance-communications.com/forum Forums TDM Business Telephone Systems NEC Telephones & Systems Connecting two i124 systems across fiber

I have 2 buildings, connect via fiber, in which,
each building has a NEC i124 installed.
One system has 300 ext. #'s and the other has 700 ext. #'s

I'd like to connect the two systems via T1 trunks.
Can someone give me a synopsis on connecting two
systems this way? What areas, of the phone system, need to be setup so that it understands when to go out through the T1 trunk?

Also, should I use a specific method considering
that, in order to convert the media to fiber, I want to use existing routers?
(Each with a T1 interface and an Ethernet interface.)

Thanks.

P.S. - In case you're wondering, we just moved our
"sister" company into the building next
door, which is why we have two identical
systems that are running independant of
each other. Each building has it's own
phone lines. We just want to be able to
intercom and transfer calls to one another.

Probably be easier to run some copper between the 2 buildings and use the T1's tied back to back.

You will need fiber to T1 transcievers and a PRI/TI card in each system and the proper enhanced software revision.

Ok, in response to the first reply:
Thanks for your input but if I thought that I could get good quality across 1000 feet of copper, running through alot of red-iron, I never would have posted this message.

In response to the second reply:
"YA THINK?!?!"
Boy, I never even considered that I would need fiber to T1 transcievers for MY FIBER CONNECTION.

I KNOW what hardware I need and how to physically connect everything. In fact, that's already done.
I even have the latest software version.

What I'm asking for is an overview on how I can setup each system to know how/when, to use the link, and the best protocol method to use.
(i.e. "Using Program 'xxx', setup maps/groups, for extensions in the other building, and choose 'xxx' protocol since you're using an IP router, or chose 'xxx' if it's capable of bridging".)

Look, I don't mean to sound rude. I DO appreciate your efforts but it's just not helpful information.

Thanks

You're correct - you didn't have to sound rude! But I see from your profile that you are a Director of IT so your response is typical.

Ninety-nine percent of the end users coming here have no idea what hardware, software, etc. is needed. T&R and Coral were just trying to get you headed in the right direction.

Given the complexity of what you want to do, I suggest you contact a local vendor, or perhaps the "manuals" link at the top of the page would be more helpful.

mbrown80, you CAN get a good T1 signal up to 6500 feet on copper before boosting it again. Not that you need to but apparently you don't know basics of T1 operation. Also, some phone systems use fiber shelves.

As far as having the latest software you MUST have 124i EXCPRU V6.00.01 or higher OR 124i Enhanced V1.XX.XX or higher. 124i series system network via T1 not PRI and will probably require a DTMF card in each to operate correctly.

We try and help people here as much as is possible but quite honestly, the questions you are asking tell us you are not qualified to be doing the programming you need and should get a local certified vendor in to help you.

Please don't give me that "your response is typical" crap.

To assume that I don't know anything about T1
and copper just because I want to use the fiber
is bad judgement on your part.
I was simply looking comments based ONLY on the
questions that I asked. I wasn't asking for any
assumptions to be made on my unique situation or
to the level of my knowledge. Assuming that
would have been understood was bad judgment on MY
part. I was only hoping to save everyone's
valuable time. If you don't know the answer,
then there's no real need to reply. I thought that
the basis for these technical help groups was to
provide real answers, not to trash people's
intelligence. You say that the questions I'm
asking show that I'm not qualified to be programming.
I could easily say that the same applies to you
given the fact you weren't able to provide any
real answers. But that would be making an
assumption of your intelligence and would be
disrespectful.

At any rate, I'm still hoping that someone, who
understands the software side of it, will be
able to provide an answer to the questions I've
propsed.

mbrown80,

The fact you have come here asking for help on something you are not qualified OR certified to do speaks volumes to your frustration. Very specific questions were answered from the way they were asked. Basically the questions you asked or were asking were akin an IT guy asking how does ethernet work? No one here has questioned your intelligence...just your lack of knowledge and or experience of what you are trying to do.

Seeing how I am a moderator here (on other forums) and you have taken your decidedly inapproprate and I may add unproffessional tone towards people here I am asking for the locking this thread.

You might want to check with NEC

As far as your original question
I really don't think you'll find anyone who has done something like this here, you might get lucky but I don't think so, finding someone who's done this on that particular system is like looking for a needle in a hay stack, most people would have one system running both buildings in other words very very few business hook two systems up back to back to run as one, I've been in the business for 36 years and never seen it, heard it talked about but never saw one.
Anyway good luck on your venture...and I believe NEC will be your best option for your synopsis and software information.

His system is also called a Nitsuko 124i as well. That is where you will get the most bang for the buck. I have networked MANY townships and in fact the very first one was 384i's because the 124i's at that time couldn't be networked. The manual that has most of all the answers is the i-series networking manual. This manual assumes you are a certified NEC/Nitsuko tech and is a walkthrough available to any certified (current) NEC dealer in the businesscom series phones.