24.13 Configuring Voice Mail ......................................................................................... 260
25 Analog Gateway .............................................................................................. 261
25.1 Configuring Keypad Features .............................................................................. 261
25.2 Configuring Metering Tones ................................................................................. 262
25.3 Configuring Charge Codes ................................................................................... 263
25.4 Configuring FXO Settings .................................................................................... 264
25.5 Configuring Authentication ................................................................................... 265
25.6 Configuring Automatic Dialing .............................................................................. 266
25.7 Configuring Caller Display Information ................................................................. 268
25.8 Configuring Call Forward ..................................................................................... 270
25.9 Configuring Caller ID Permissions ....................................................................... 271
25.10 Configuring Call Waiting ....................................................................................... 272
25.11 Rejecting Anonymous Calls ................................................................................. 273
25.12 Configuring FXS Distinctive Ringing and Call Waiting Tones per
Source/Destination Number .......................................................................................... 273
25.13 FXS/FXO Coefficient Types ................................................................................. 274
25.14 FXO Operating Modes ......................................................................................... 275
25.14.1 FXO Operations for IP-to-Tel Calls ........................................................................275
25.14.1.1 One-Stage Dialing ................................................................................. 276
25.14.1.2 Two-Stage Dialing ................................................................................. 277
25.14.1.3 DID Wink ............................................................................................... 277
25.14.2 FXO Operations for Tel-to-IP Calls ........................................................................278
25.14.2.1 Automatic Dialing .................................................................................. 278
25.14.2.2 Collecting Digits Mode........................................................................... 279
25.14.2.3 FXO Supplementary Services ............................................................... 279
25.14.3 Call Termination on FXO Devices .........................................................................280
25.14.3.1 Calls Termination by PBX ..................................................................... 280
25.14.3.2 Call Termination before Call Establishment .......................................... 281
25.14.3.3 Ring Detection Timeout ......................................................................... 281
25.15 Remote PBX Extension between FXO and FXS Devices .................................... 281
25.15.1 Dialing from Remote Extension (Phone at FXS) ...................................................282
25.15.2 Dialing from PBX Line or PSTN .............................................................................282
25.15.3 Message Waiting Indication for Remote Extensions .............................................283
25.15.4 Call Waiting for Remote Extensions ......................................................................283
25.15.5 FXS Gateway Configuration ..................................................................................284
25.15.6 FXO Gateway Configuration ..................................................................................285
Stand-Alone Survivability Application .................................................................287
26 SAS Overview .................................................................................................. 289
26.1 SAS Operating Modes ......................................................................................... 289
26.1.1 SAS Outbound Mode .............................................................................................289
26.1.1.1 Normal State ......................................................................................... 290
26.1.1.2 Emergency State ................................................................................... 290
26.1.2 SAS Redundant Mode ...........................................................................................291
26.1.2.1 Normal State ......................................................................................... 292
26.1.2.2 Emergency State ................................................................................... 292
26.1.2.3 Exiting Emergency and Returning to Normal State .............................. 292
26.2 SAS Routing ......................................................................................................... 293
26.2.1 SAS Routing in Normal State ................................................................................293
26.2.2 SAS Routing in Emergency State ..........................................................................295
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