02-06-2011 07:54 PM - edited 03-21-2019 03:38 AM
hi I am ordering an at&t Centrex PRI to the UC560 - question is should I pick NI2 or NI1? and B channel selection Low-to-High or High-to-Low (UC560 has to select the opposit as the setup in the at&t switch).
02-08-2011 08:26 AM
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