Hi All,
I am having some trouble coming to terms with ISDN and E1 circuits.
My scenario is, we are replacing a phone system for a customer and they've told me they use ISDN30 DASS however I don't know what the appropriate interface card for the gateways ould be. Has anyone come across this connection type before?
Looking through BT documentation it states the service is: "ISDN30 (DASS) is referred to as G703, 75 Ohms, Unbalanced."
http://btbusiness.custhelp.com/app/answers/detail/a_id/8402/~/what-do-i-get-with-isdn30-(dass)%3F#2
So I am leaning towards a VWIC3-1MFT-G703 but I don't know with any certainty.
Can anyone help?
Many Thanks,
Tom Whittle
