
3-2 Courier I-modem Getting Started Guide
Requesting ISDN Service
1 Call your local telephone company and request Bellcore Capability
Package S (listed in Bellcore SR-3840).
If your telephone company does not recognize Bellcore capability
packages, request the following items:
• ISDN BRI service.
• Number of channels: 2B+D, with no packet-mode data on the D-
channel.
• Call type support:
This channel Supports
Data B-channel Circuit-Switched Voice and Data
(CSV/D)
Analog Device B-channel Circuit-Switched Voice and Data
(CSV/D)
• Dynamic TEI assignment.
• Multipoint bus configuration.
• No features or special services such as CACH EKTS, call
forwarding, or hunt groups.
• Terminal Type A.
• RJ45 jack (RJ11 is acceptable).
2 Specify your preferred long-distance provider.
3 Ask the telephone company which type of central-office switch your
ISDN line will terminate and which protocol the switch uses. Record
the switch type and protocol here:
üü
Switch Protocol
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AT&T 5ESS Custom
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AT&T 5ESS National ISDN-1
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Northern Telecom DMS-100 Custom (PVC 0 or 1)
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Northern Telecom DMS-100 National ISDN-1 (PVC 2)
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Siemens EWSD National ISDN-1
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Other National ISDN-1
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