If you have point-to-point (PTP) ISDN then you may only connect one ISDN device - the PBX - to the S0 bus. In this case the phone numbers are called DDI instead of MSN (point-to-multipoint, PTMP). Other known marketing names are "indialing" for DDI, which usually provides sets of 10 consecutive numbers.
DDI and DID have the same meaning (direct inward dialing).
Term translation into GermanPTP: "TK-Anlagenanschluss" (comes with a "NTBIBA")
PTMP: "Mehrgeraeteanschluss" (comes with a "NTBA")
BRI: 2-Kanal ISDN ("ISDN Standardanschluss")
PRI: x-Kanal ISDN (usually 28-30 channels)
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Created by: JustRumours, Last modification: Sat 10 of Jan, 2004 (15:34 UTC)
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