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Old May 1st, 2006, 12:19 PM   #18 (permalink)
martinyoung
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Re: Polycom Video Conf using the TN556B

Quote:
Originally Posted by oozenoz
One last clarification, protocol on a DS1 is set on the Signalling Group. The most common used are: A = AT&T Custom, B = National ISDN, C = NTI.
This muddies things just a little, I do not recall ever changing the protocol in the signalling group from A. I have done this a few thousand times and have never had a problem. I do, however, have to change the protocol on the DS1 page frequently. The common choices are -

A= NI1 and 4ESS
B= NI2 and 5ESS
C= DMS100
D= NI2 Enhanced, I have not used it yet but you need a 5ESS with the latest software to use this

Perhaps I have just been lucky.
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