Netgear XM128 QIG - Quick Install Guide - Page 69
Advanced ISDN
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Chapter 7 Advanced ISDN This chapter provides information about using advanced ISDN for the Model XM128 ISDN Digital Modem. Call Control for DSS1 In order to initiate a Digital Subscriber Signaling #1 (DSS1) ISDN call, two information elements are necessary: • The bearer capability element indicates what kind of bearer service is desired. It is also used for compatibility checking in the addressed entity. • The called party number element provides necessary information for the telephone company central office (CO) to direct the call to the destination. The following optional information elements are also pertinent to call control: • High-layer compatibility • Low-layer compatibility • Calling party number • Called party number • Calling party subaddress • Called party subaddress Advanced ISDN 7-1