Specifications

MultiModem ISI Hybrid Series, ISIHI-2S/2U 141
Appendix
Ordering ISDN Without IOCs
The form below can guide you and your telephone company in specifying and obtaining
ISDN service when IOCs are not used. To support most ISDN TA features, telephone
service must meet certain requirements. These requirements are described in the
following sections. Some features may be added or deleted, depending on your actual
data service needs and availability in your area. Before ordering, talk to your telephone
company about which services are provided in your area.
Complete and fax the form below to your telephone company to request the proper ISDN
line for use with your ISDN TA module.
Name: ________________________________________________________________
Address: ______________________________________________________________
City: _____________________________ State: ______________________________
ZIP Code: _________ Daytime Telephone Number: ___________________________
1. Request an ISDN BRI (Basic Rate Interface) line with:
 U-Interface Reference Point
 2B1Q Line Coding.
2. Choose one of the following:
_______ 2B+D Service (supports up to 128 Kbps), or
_______ 1B+D Service (supports up to 64 Kbps).
3. Indicate the ISDN Switch Type and Software Protocol you will be using:
_______ AT&T 5ESS with:
_______ Custom, 5E6 and later software, or
_______ NI1 (National ISDN-1)
_______ Northern Telecom DMS-100 with:
_______ BCS-32 and later software (Pvc1), or
_______ National ISDN-1 (Pvc2)
_______ Siemens EWSD with National ISDN-1
4. Request that the ISDN line you are ordering allocates one dynamic TEI (Terminal
Endpoint Identifier) per phone number.