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Old 2000 and PRI 2
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LDthirtytwo
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Is your software 1000 or 1020 or 1030? 1000 is Basic, 1020 is Basic + ISDN, 1030 is Basic + ISDN + CCIS.
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ISDN was truly first supported in 1200 series software and only the AT&T protocol. 1500 series saw Northern protocol and then finally with 1800 NI2 protocol.
If you have the original 1000 series CPU (with large Eprom) it cannot be upgraded. NEC moved to flash upgrades in 1994/95 so the original CPU's had to be swapped out to allow upgrades.
If you have the original 1000 series CPU (with large Eprom) it cannot be upgraded. NEC moved to flash upgrades in 1994/95 so the original CPU's had to be swapped out to allow upgrades.
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