mh613

Hello, this might be an off the wall question. I have a T1 Dialogic card I am trying to configure for use with a TN767E DS1 Interface card Version 21 that is on a Definity G3si. The site is the owner of the phone system and I'm trying to match the settings he has on his cards with my Dialogic voice card. The site is saying they have no way to change anything and its not configurable at all. Ive been reading a few pdf's on what I can find out about their system and the TN767E card but cant make much sense of it. Basically I was wondering if anyone knew what the default settings were and how the bit signaling works. I need to tell my cards what to do to respond to their phone system but dont know what their system is expecting back to tell them we "picked up the call, you can stop ringing now". Currently I am seeing from them A bit is off and I'm seeing them flash the B bit from on to off then on and off again and on again when a call is coming through. I'm probably leaving some necessary information out so I will check back to see if anyone has any ideas or suggestions

martinyoung

The usual way to connect a DS1 card to a Dialogic card is to program the DS1 as a lineside DS1 then build an ISDN trunk group with service type "tie".

Then you roll the send and receive pair to establish connectivity. To verify that the Definity is communicating you type the command "test board <DS1 board>". If tests 138 to 144 pass, communication has been established.

__________________
Marty
Retired Avaya DSIC tech

PBXtech.info

 

ahays

First: The T1 card's settings CAN be changed. What are the EXACT settings that you are looking for ... i.e. what would YOU like to see the card do?

Second: You may need a T1 cross-over cable. In that case, make sure that pins 1 and 4 on one end are crossed to pins 4 and 5 (respectively) on the other end.

regs,

.al.

__________________
Al Hays, ACE, MCSE, CCNA
Homepage: http://www.jeral.com/
Training: http://www.jeral.com/avaya-learning.html

martinyoung

If you are not familiar with T1s, the typo might confuse you so let me correct it. That would be pins 1 and 2 to pins 4 and 5.

__________________
Marty
Retired Avaya DSIC tech

mh613

The typical questionnaire we send out for the telco at the site to fill out is as follows but if the site isnt knowledgeable or not sure about their system they cant give me the info :)

1. Do the A and B bits always change together during signaling?
2. What is the initial state of the A and B bits?
3. Does the CO expect A,B,C and D bits or just A and B?
4. Does the CO expect a bit pattern to be transferred when the line is idle?
5. When the CO detect an incoming call, what changes are made to the A and B or A,B,C and D bits to indicate this?
6. After detecting a call, does the CO expect a "wink?" What bits are changed to indicate the Wink, and how long should those bits be changed for before reverting?
7. Does the CO send ANI digits and/or DNIS digits?
8. What is the maximum # of ANI digits that will be sent (including prefixes/suffixes?)
9. What is the maximum # of DNIS digits that will be sent (including prefixes/suffixes?)
10. Which is sent first DNIS or ANI digits?
11. What is the prefix sent before the DNIS and ANI digits?
12. What is the suffix sent after DNIS and ANI digits?
13. Get an example of ANI digits with suffix and prefix.
14. Get an example of DNIS digits with suffix and prefix.
15. After DNIS does the CO expect a wink?
16. After ANI does the CO expect a wink?
17. Does the CO need a "RingBack" from the Dialogic card before answering the call?
18. What bit changes does the CO want in order for us to indicate a call answer?
19. What bit changes does the CO use to indicate a disconnect?

I;m going to see if they have a crossover cable being used or not. Its kind of difficult because they are saying they cant do anything because it works fine on the old Brooktrout cards the lines were plugged into. I really appreciate the help guys.

martinyoung

If it works on the Brooktrout then it probably has a rollover cable. But if it is old then the DS1 configuration could be D4/AMI. The TN767E is very configurable despite what you are being told.

Your questionaire is a little confusing. Is this going to be directly connected to a Definity onsite or are you going to be running through a Telco Central Office before you connect to the Definity? A Definity is not a telco and most of your questions do not apply to a Definity. A Definity is usually the interface between the telco and whatever computer the Dialogic board sits in and handles all the processing you are asking about.

__________________
Marty
Retired Avaya DSIC tech

PBXtech.info

 

mh613

It is going to be connected to the Definity onsite, our server has the Dialogic card in it. The person onsite was able to confirm it is B8ZS and ESF. Yes the questionnaire is designed for a typical connection to the telco, does the DS1 card not send the typical bits that a T1 would send?

martinyoung

Yes, it is designed to work with T1s but you are going to need to rephrase your questions to something a Definity tech will understand. Your questions about DNIS and ANI are not relevant unless the Definity is going to do no answering on calls to your server, it will just pass the entire call to you. If that is what happens, then you will need to ask the T1 vendor what is coming in. If the Definity answers the call first then routes it to you because the caller makes whatever choices required to get it to you, all the DNIS and ANI handling has already been done. You will be getting internal data from the Definity.

A Definity tech will have no idea what an A bit or B bit is or what they do, we deal with line coding and format which in your case is B8ZS/ESF.

__________________
Marty
Retired Avaya DSIC tech

mh613

Thank you, that makes sense, before it was going through an automated attendant where we had to press 1 then an extension, we then requested that we could have just a number that went straight through to our system which they gave us. I will check with them to see if that is how it is configured, is there anything specific I can ask him to see if his system is in fact configured to just pass the T1 vendor to us?

martinyoung

Now we have something to work with.

I would start at the DS1 page and assign it as a lineside DS1 using B8ZS/ESF and protocol version a (NI1). Everything else at default. Have the Definity tech show you or tell you what they have.

If I wanted the PBX to pass calls directly to you instead of a trunk group, I would make it a hunt group. The lead number of the hunt group would be a DID that is either a normal incoming DID or a DNIS for an 800 number. The DNIS would be just a DID with only those digits whatever they are (three or four). The members of the hunt group would be stations with the type of DS1FD. The ANI of the incoming call should pass directly to you with no further manipulation needed.

__________________
Marty
Retired Avaya DSIC tech

mh613

Hello again,
The person responsible for the site had some lacking replies, simple one liners with nothing else to go with.
I asked if the DS1 was set to lineside and protocol version a (NI1) he stated
There is no place to set anything like that.
and when i asked if the system answers and then passes the call to my system or if it just passes the call from the telcom vendor to us he stated
System answers first and routes it

martinyoung

It sounds like you are dealing with someone not familiar with the Definity. For the sake of discussion, let us say the DS1 board is in slot 1B10.

Ask that person to type "display DS1 1B10". That is the page where the type and protocol are set.

Now you need to find out how it is configured. Ask that person to type "display port 1B1001", this will tell you if it is in trunk group or a hunt group. This person told you that the PBX answers the call first then routes it to your server, he needs to tell you exactly how this is done. There are many ways to do that and to get your end to work you need to know how the PBX handles the call.

The kind of changes you are wanting to make will require some assistance from a tech knowledgeable in the PBX, you will not succeed if the only changes being made are at your end. Your customer needs to help you get it right or neither one of you will be satisfied.

__________________
Marty
Retired Avaya DSIC tech

mh613

I got him to fax me a display print of what he has
bit rate: 1.544
line compensation: 1
signaling mode: robbed-bit
idle code: 11111111
line coding: b8zs
framing mode: esf
slip detection: n
CSU type: integrated
net management protocol: tabs
performance reports: n
Farend csu address: b
transmit: .0db
receive: 26db
upon DTE LOS: loopback
loopback jack power: n

Some of these settings make a little bit of sense from the PDF G3V3 Addendum 2 to AT&T 555-230-653 I've been reading. With those settings listed above do you think I would need to go to his telco provider to find out what they would be sending and need from the Dialogic card in order to answer or is the Definity still doing some type of managing of the call coming to the Dialogic card? I will see if I can have him do the "display port" command also.

martinyoung

The signaling mode being robbed bit says this is not an ISDN T1 so you might not be getting ANI right now. Knowing whether the 24 channels of this T1 are in a hunt group or a trunk group will tell us more about how it is working now.

You said earlier that access to your server was from an auto attendant and that you wanted to change that, this will require some reprogramming in the Definity.

__________________
Marty
Retired Avaya DSIC tech

mh613

The site says it is configured as a hunt group. I had them try and change to D4 and made the changes on my end as well and got the same thing. I had him turn on slip detection as well, is there something he can do to find if its slipping or if hes getting errors? Would his system typically provide the clocking?