ISDN 30 Dass to e

[randall1uk]

Hello

Can someone tell me, I have a customer that has a old Mitel system using ISDN 30 Dass and need to change this to ISDN 30e for the new phone system, If I get this changed by openreach will the Mitel system still work or would you have to change the card and reprogram the system for this to work?

Thanks

Mark

 

[kwbMitel]

Define "Old" by type of phone system, Specific hardware in use for Digital Trunks and Software load.

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What's most important is that you realise ... There is no spoon.

 

[wireman50]

Dass i usually delivered on 75 ohm coax and e on 120 ohm RJ45. Depending on system you may have to change card (ones like the imagination had a simple switch on the card to change the termination method. So it may be a card change unless you can get openreach to deliver the e on 75ohm co-ax. Its been a long time mind since i delved into Dass but IIRC it is just a protocol so the card should still be the same. I guess you could even use 75 ohm baluns to convert to rj45 if the put a different NTE in. (again IIRC some of the older NTE;s had 3 or 4 metods of termination. There will be some reprogramming of the old system to do though I would expect.