2 • Preparation |
| Model 2977 DialFire RAS User Guide | ||
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| Before You Install the | Order the ISDN Line | ||
| DialFire RAS B4ST | If you do not have an ISDN line installed, you need to contact your telephone | ||
| Adapter… | |||
| company and order a Basic Rate ISDN line (2B+D) with the following recom- | |||
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| mended configuration: | ||
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| Note If your telephone company supports either of the following | |
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| ISDN Ordering Codes, request that your ISDN line be | |
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| configured to one of them. | |
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| • | Capability S | |
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| If your telephone company does not support either of these Ordering Codes, | ||
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| request the following ISDN line configuration: | ||
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| • Switch Type: National ISDN 1 (preferred), ETSI, AT&T 5ESS, or Nortel DMS 100 | ||
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| • ISDN Basic Rate Interface (BRI) service (2B+D) | ||
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| • 2 B channels, D channel for signaling only (no D channel packet data) | ||
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| • Circuit Switched data and voice (CSD/CSV) on each channel | ||
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| • | Dynamic TEI | |
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| • | Multipoint bus configuration | |
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| • Terminal type A (AT&T Custom switch only) | ||
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| • No EKTS or special services or features | ||
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| *You must select a long distance carrier and forward your choice, along with the Ordering Code or | ||
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| line configuration, to your telephone company | ||
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Note After completing the worksheet, go to chapter 3, “Installing the Model 2977 adapter” on page 29
28 | DialFire ISDN T1 (PRI), |