Table of Contents / vii

Telephone features 147

Installing Norstar telephones 147 Naming a telephone or a line 149 Moving telephones 149

Stopping calls from ringing at your telephone using Do Not Disturb (DND) 150

Stopping calls 150

Refusing to answer a call 150 Canceling Do Not Disturb 150 Using Do Not Disturb 150

Using Background Music 151 Turning Background Music off 151

ISDN PRI and BRI 153

ISDN PRI 153

ISDN PRI features 154

Network Name Display for PRI 154 Name and number blocking for PRI 155 Emergency 911 Dialing 155

2-way DID 155

Call by Call service selection for PRI 156 Dialing Plan and PRI 157

ISDN BRI 158

Line access from an ISDN terminal 159 ISDN BRI features 159

Network Name Display for BRI 159 Name and number blocking for BRI 160

Service provider features 160 Call Forward 160 Canceling Call Forward 161

Calling the number your calls are forwarded to 161 Automatic Call Back 161

Automatic Recall 161 ISDN BRI terminals 162

ISDN applications for BRI and PRI 162 Videoconferencing and video telephony 162 Desktop conferencing 162

File transfer 162 Telecommuting 162

P0881591 Issue 01

Modular ICS 4.0 System Coordinator Guide

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Nortel Networks Modular ICS 4.0 manual Telephone features, Isdn PRI and BRI