Version 6.2 5 February 2011
SIP User's Manual Contents
6 Restoring Factory Default Settings ............................................................... 215
6.1 Restoring Defaults using CLI ............................................................................... 215
6.2 Restoring Defaults usin
g an ini File ...................................................................... 216
6.3 Restoring Defaults usin
g Hardware Reset Button ................................................ 216
7 Auxiliary Configuration Files ......................................................................... 217
7.1 Call Progress Tones File ...................................................................................... 217
7.1.1 Distinctive Ringing .................................................................................................220
7.1.2 FXS Distinctive Ringing and Call Waiting Tones per Source/Destination Number221
7.2 Prerecorded Tones File ........................................................................................ 222
7.3 Dial Plan File
........................................................................................................ 223
7.4 User Information File
............................................................................................ 224
8 IP Telephony Capabilities ............................................................................... 227
8.1 Dynamic Jitter Buffer Operation ........................................................................... 227
8.2 Gateway an
d IP-to-IP ........................................................................................... 228
8.2.1 Dialing Plan Features ............................................................................................228
8.2.1.1 Dialing Plan Notation for Routing and Manipulation ............................. 228
8.2.1.2 Digit Mapping ........................................................................................ 229
8.2.1.3 External Dial Plan File ........................................................................... 230
8.2.2 Manipulating Number Prefix ..................................................................................232
8.2.3 Configuring DTMF Transport Types ......................................................................233
8.2.4 FXS and FXO Capabilities .....................................................................................234
8.2.4.1 FXS/FXO Coefficient Types .................................................................. 234
8.2.4.2 FXO Operating Modes .......................................................................... 234
8.2.4.3 Remote PBX Extension Between FXO and FXS Devices .................... 242
8.2.5 Configuring Alternative Routing (Based on Connectivity and QoS) ......................247
8.2.5.1 Alternative Routing Mechanism ............................................................ 247
8.2.5.2 Determining the Availability of Destination IP Addresses ..................... 247
8.2.6 Fax and Modem Capabilities .................................................................................248
8.2.6.1 Fax/Modem Operating Modes ............................................................... 248
8.2.6.2 Fax/Modem Transport Modes ............................................................... 248
8.2.6.3 V.152 Support ....................................................................................... 253
8.2.6.4 Fax Transmission behind NAT .............................................................. 254
8.2.7 Working with Supplementary Services ..................................................................254
8.2.7.1 Call Hold and Retrieve .......................................................................... 255
8.2.7.2 Call Pickup ............................................................................................ 257
8.2.7.3 Consultation Feature ............................................................................. 257
8.2.7.4 Call Transfer .......................................................................................... 258
8.2.7.5 Call Forward .......................................................................................... 259
8.2.7.6 Call Waiting ........................................................................................... 261
8.2.7.7 Message Waiting Indication .................................................................. 262
8.2.7.8 Caller ID ................................................................................................ 262
8.2.7.9 Three-Way Conferencing ...................................................................... 265
8.2.7.10 Multilevel Precedence and Preemption ................................................. 266
8.2.8 SIP Call Routing Examples....................................................................................268
8.2.8.1 SIP Call Flow Example .......................................................................... 268
8.2.8.2 SIP Authentication Example .................................................................. 271
8.2.8.3 Establishing a Call between Two Devices ............................................ 274
8.2.8.4 SIP Trunking between Enterprise and ITSPs ....................................... 275
8.2.9 Mapping PSTN Release Cause to SIP Response ................................................278
8.2.10 Querying Device Channel Resources using SIP OPTIONS ..................................278
8.3 Stand-Alone Survivability (SAS) Application ........................................................ 279
8.3.1 SAS Operating Modes ...........................................................................................279
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