20 SIP Definitions ................................................................................................. 225
20.1 Configuring SIP Parameters ................................................................................ 225
20.2 Configuring Account Table ................................................................................... 225
20.3 Configuring Proxy and Registration Parameters .................................................. 228
20.3.1 SIP Message Authentication Example ..................................................................230
20.4 Configuring SIP Message Manipulation ............................................................... 232
20.5 Configuring SIP Message Policy Rules ................................................................ 236
21 Coders and Profiles ........................................................................................ 239
21.1 Configuring Coders .............................................................................................. 239
21.2 Configuring Coder Groups ................................................................................... 242
21.3 Configuring Tel Profile .......................................................................................... 243
21.4 Configuring IP Profiles ......................................................................................... 245
Gateway and IP-to-IP Application ........................................................................257
22 IP-to-IP Routing Overview .............................................................................. 259
22.1 Theory of Operation ............................................................................................. 260
22.1.1 Proxy Sets .............................................................................................................261
22.1.2 IP Groups ...............................................................................................................261
22.1.3 Inbound and Outbound IP Routing Rules ..............................................................263
22.1.4 Accounts ................................................................................................................263
22.2 IP-to-IP Routing Configuration Example .............................................................. 263
22.2.1 Step 1: Enable the IP-to-IP Capabilities ................................................................266
22.2.2 Step 2: Configure the Number of Media Channels ................................................266
22.2.3 Step 3: Define a Trunk Group for the Local PSTN ................................................266
22.2.4 Step 4: Configure the Proxy Sets ..........................................................................267
22.2.5 Step 5: Configure the IP Groups ...........................................................................269
22.2.6 Step 6: Configure the Account Table .....................................................................270
22.2.7 Step 7: Configure IP Profiles for Voice Coders .....................................................271
22.2.8 Step 8: Configure Inbound IP Routing ...................................................................272
22.2.9 Step 9: Configure Outbound IP Routing ................................................................274
22.2.10 Step 10: Configure Destination Phone Number Manipulation ...............................275
23 Digital PSTN ..................................................................................................... 277
23.1 Configuring Trunk Settings ................................................................................... 277
23.2 TDM and Timing ................................................................................................... 280
23.2.1 Configuring TDM Bus Settings ..............................................................................280
23.2.2 Clock Settings ........................................................................................................280
23.2.2.1 Recovering Clock from PSTN Line Interface ........................................ 281
23.2.2.2 Configuring Internal Clock as Clock Source ......................................... 281
23.3 Configuring CAS State Machines ......................................................................... 282
23.4 Configuring Digital Gateway Parameters ............................................................. 284
23.5 Tunneling Applications ......................................................................................... 285
23.5.1 TDM Tunneling ......................................................................................................285
23.5.1.1 DSP Pattern Detector ............................................................................ 288
23.5.2 QSIG Tunneling .....................................................................................................288
23.6 ISDN Non-Facility Associated Signaling (NFAS) ................................................. 289
23.6.1 NFAS Interface ID ..................................................................................................290
23.6.2 Working with DMS-100 Switches ..........................................................................290
23.6.3 Creating an NFAS-Related Trunk Configuration ...................................................291
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