Zyxel-communications 802.11g Wireless ADSL2+ 4-port VoIP IAD P-2602HWNL Manual do Utilizador descarregar pdf (Página 16)

P-2602HWNLI User’s Guide

16 Table of Contents

11.13.3 Echo Cancellation ...............................................................................179

11.14 Analog Phone Screen ..................................................................................179

11.15 Advanced Analog Phone Setup Screen .......................................................181

11.16 ISDN Phone Screen .....................................................................................182

11.17 Common Phone Settings Screen .................................................................182

11.18 Supplementary Phone Services Overview (PSTN) ......................................183

11.18.1 The Flash Key .....................................................................................184

11.18.2 Europe Type Supplementary Phone Services ....................................184

11.18.2.1 European Call Hold ...................................................................184

11.18.2.2 European Call Waiting ..............................................................185

11.18.2.3 European Call Transfer .............................................................185

11.18.2.4 European Three-Way Conference .............................................185

11.18.2.5 European Call Return ................................................................186

11.18.3 USA Type Supplementary Services ....................................................186

11.18.3.1 USA Call Hold ............................................................................186

11.18.3.2 USA Call Waiting ......................................................................186

11.18.3.3 USA Call Transfer ......................................................................186

11.18.3.4 USA Three-Way Conference .....................................................187

11.18.3.5 USA Call Return ........................................................................187

11.19 Supplementary Phone Services Overview (ISDN) .......................................187

11.20 Phone Region Screen ..................................................................................188

11.21 Speed Dial ....................................................................................................189

11.21.1 Peer-to-Peer Calls ..............................................................................189

11.22 Speed Dial Screen ........................................................................................190

11.23 Incoming Call Policy Screen .........................................................................191

11.24 PSTN Line Screen ........................................................................................193

11.25 ISDN Line Screen .........................................................................................194

Chapter 12

Phone Usage ........................................................................................................ 197

12.1 Dialing a Telephone Number ..........................................................................197

12.2 Using Speed Dial to Dial a Telephone Number ..............................................197

12.3 Internal Calls ..................................................................................................197

12.4 Checking the Device’s IP Address .................................................................197

12.5 Auto Firmware Upgrade .................................................................................198

Chapter 13

Firewalls................................................................................................................ 199

13.1 Firewall Overview ..........................................................................................199

13.2 Types of Firewalls ..........................................................................................199

13.2.1 Packet Filtering Firewalls ......................................................................199

13.2.2 Application-level Firewalls ....................................................................200

13.2.3 Stateful Inspection Firewalls .................................................................200

1 2 ... 11 12 13 14 15 16 17 18 19 20 21 ... 441 442

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