3Com VCX V7122 SIP VoIP Gateway User Manual 5Auxiliary Files 86Updating the Software Upgrade Key 88Save Configuration 88Resetting the VCX V7122 89C HAPTER 6: INI FILE C ONFIGURATION OF THE VCX V7122 91Secured ini File 91Modifying an ini File 91The ini File Content 92The ini File Structure 92The ini File Structure Rules 92The ini File Example 93Basic, Logging, Web, and RADIUS Parameters 93SNMP Parameters 101SIP Configuration Parameters 102ISDN and CAS Interworking-Related Parameters 114Number Manipulation and Routing Parameters 119E1/T1 Configuration Parameters 127Channel Parameters 132Dynamic Jitter Buffer Operation 136Configuration Files Parameters 137C HAPTER 7: C ONFIGURATION F ILES 139Configuring the Call Progress Tones 139Format of the Call Progress Tones Section in the ini File 139Prerecorded Tones (PRT) File 141PRT File Format 141Voice Prompts File 142CAS Protocol Configuration Files 142C HAPTER 8: G ATEWAY CAPABILITIES D ESCRIPTION 143Proxy or Registrar Registration Example 143Redirect Number and Calling Name (Display) 143ISDN Overlap Dialing 144Using ISDN NFAS 144NFAS Interface ID 145Working with DMS-100 Switches 146Configuring the DTMF Transport Types 146Configuring the Gateway’s Alternative Routing (based on Connectivity and QoS) 150Alternative Routing Mechanism 150Determining the Availability of Destination IP Addresses 150PSTN Fallback as a Special Case of Alternative Routing 150Relevant Parameters 151Working with Supplementary Services 151
