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Re: Polycom Video Conf using the TN556B
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Originally Posted by oozenoz
U certain about the protocol version a? I thought that was necessary for AT&T custom... found this in the Avaya book under Public network signaling administration for ISDN-PRI Layer 3 (for country code = 1):
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I dug out some old notes and you are correct, AT&T custom is also protocol A. I don't remember using that for a while, though.
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Marty
Retired Avaya DSIC tech
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