E&M and DTMF receivers in different Pools

[AlquestTech]

I was looking through a couple of my older MICs that were programmed years ago by Verizon and I came across something I thought odd.

I noticed that they put the first 2 ports of the E&M card in one pool and the second two (identified as DTMF) inanother pool

here is an example
081 - E&M - Pool B
082 - E&M - Pool B
083 - DTMF - Pool K
084 - DTMF - Pool K
089 - E&M - Pool B
090 - E&M - Pool B
091 - DTMF - Pool M
092 - DTMF - Pool M

Why would they do this? But wait, it gets a bit stranger

097 - E&M - Pool D
098 - E&M - Pool D
099 - DTMF - Pool O
100 - DTMF - Pool O
101 - E&M - Pool D
102 - E&M - Pool D
103 - DTMF - Public
104 - DTMF - Public

105 - E&M - Pool C
106 - E&M - Pool C
107 - DTMF - Public
108 - DTMF - Public
109 - E&M - Pool C
110 - E&M - Pool C
111 - DTMF - Public
112 - DTMF - Public


Obviously, I havbe three Pool Groups with Tie Lines.
I just don't know why they prgrammed the receivers, (I am assuming that's what the ports labeled DTMF are), in separate pools or even as public.

Anyone know if there is a reason for doing this?

 

[Crowtalks]

Do you have two or more systems networked together?

 

[AlquestTech]

yes

 

[Crowtalks]

My guess would be that they were using the DTMF lines in pools O, M & K to private network three systems together. Nortel has always recommended you use the bottom pools and work up for your private network.

How Verizon achieved this using DTMF, I haven't a clue.

I've always used VoIP trunking.

You might look in your routing and destination codes

 

[AlquestTech]

yes, well that's what the Pool B, C, and D are. They are used to network to two other Norstars
My question is why wouldn't the DTMF portion s on the same card be set up to be in the same pool at the E&M portion of the card.

 

[Crowtalks]

(shrugging) Maybe they were naming the trunks DTMF as the receiving portion of the trunks so the DTMF receivers could translate the digits being received by the remote systems and decide what to do with them using the target lines. Then again, maybe I don't have a clue what I'm talking about, either way, it's a coin toss.

 

[AlquestTech]

hehe thanks