tgolds

You will not find too much info on this.
You have to understand that the trunk in a target situation is from the outside in, and the target is the I/C that it is pointing to. So you are pointing your house pots line or phone line to a particular set in your house.
In a business environment you want certain COT's to ring certain phones.....does that make sense?

thekillerbean

Oops - you've got me seeing double - .

Okay - I've had a look at the BCM and need to clarify my question a little more:

1. I now know that we are paying the telco for 30 physical lines which are coming into the building via 2 pairs; I believe the pairs are segregated to incoming and outgoing - is it balanced as 15 lines each direction or is the system intelligent enough to allow 20/10 or 12/18 as the case may be?

2. How the lines are extracted from these 2 pairs (most likely one pair is for incoming and the other for outgoing calls) is one thing I'd like to know.

3. I have also seen that there are numerous target lines (we are using from 241 to 340 to cater for 100 extensions in the building). How would I go about, for instance, linking a target line to an extension?

This sounds like it is different from the question originally asked as I now realize that my initial question was not well thought out!

Cheers,
tk.

LHB

I'm not good on explaining things, but I'll try.

Qoute:
1. I now know that we are paying the telco for 30 physical lines which are coming into the building via 2 pairs; I believe the pairs are segregated to incoming and outgoing - is it balanced as 15 lines each direction or is the system intelligent enough to allow 20/10 or 12/18 as the case may be?

Your trunk line is an E1 or ISDN PRI. It is not 30 physical lines but 30 channels(virtual). Maybe you heard from the telco guys the term balance (mode). It doesn't mean 15 in each direction but it pertain to your 2 pair cable(transmission medium) meaning twisted pair ( you might heard also the term 120 ohms, it also mean twisted pair. The opposite UNBALANCE MODE meaning 75 ohms or coaxial cable transmission medium)


Qoute:
2. How the lines are extracted from these 2 pairs (most likely one pair is for incoming and the other for outgoing calls) is one thing I'd like to know.

Line extraction is done by your system. You have 30 channel against 100 extensions. you have a ratio of 1 trunk line to 3.3 extensions. At any given time your caller/user can grab a channel from that 30 channels. Have you heard about multiplexing? Your 100 extensions/user will be multiplex to this 30 channel. So don't bother about line extraction.

Quote:
3. I have also seen that there are numerous target lines (we are using from 241 to 340 to cater for 100 extensions in the building). How would I go about, for instance, linking a target line to an extension?

Are you using DID? Your telco line numbers are different from your extension numbers. You have to program to convert this incoming digit (tel. number dialed by your caller) to ring on a certain extension, hence target line.

Now, did I make you see thrice

(For a more understandable explaination, repost your query in the Meridian system forum)

Cheers,

gogoGophers

Lines 241-4xx are reserved as "Target Lines" on the system. Target lines have a programming field called "recieved numbers". The Central office is sending a certain number of digits, incoming, on your 30 channel circuit. When the circuit is ordered, you agree on a certain number of those digits to be sent down the circuit, for example (USA), 555-517-1234, you agree on 4 digits with the Central Office. When someone dials 555-517-1234, the Central Office sends "1234" to your phone system, on 1 of the channels (dynamically). In the recieved number field, under Target Line 244 (eg), you enter 1234. The target line is the "mechanism" that the phone system uses to route that call. You would go to extension 333 (eg) and assign line 244 to extension 333, usually ring only, 2 appearances. When the phone number is called it will appear on one of thier intercom buttons.

thekillerbean

Fantastic. I'm starting to get the picture.

Let me brood over that one and will surely be back with more when I start messing with it and mess it up - hehe.

Thanks again guys,

tk.