V6100 and V7122 User Guide 1012 In the ‘IP to Tel Reasons’ table, from the drop-down list select up to 4 different call failurereasons that invoke an alternative IP to Tel routing.3 In the ‘Tel to IP Reasons’ table, from the drop-down list select up to 4 different call failurereasons that invoke an alternative Tel to IP routing.4 Click the Submit button to save your changes.5 To save the changes so they are available after a power fail, see Save Configuration.Release Cause MappingThe Release Cause Mapping screen enables the V7122 to map (up to 12) different SIPResponses to Q.850 Release Causes and vice versa, thereby overriding the hard-codedmapping mechanism (described in Appendix 1 E: Release Reason Mapping).To configure the release cause mapping:1 Open the ‘Release Cause Mapping’ screen (Protocol Management menu > RoutingTables submenu > Release Cause Mapping option); the ‘Release Cause Mapping’screen is displayed.Figure 41 Release Cause Mapping from ISDN to SIP2 In the ‘Release Cause Mapping from ISDN to SIP’ table, define (up to 12) different Q.850Release Causes and the SIP Responses they are mapped to.3 In the ‘Release Cause Mapping from SIP to ISDN’ table, define (up to 12) different SIPResponses and the Q.850 Release Causes they are mapped to.4 Click the Submit button to save your changes.5 To save the changes so they are available after a power fail, see Save Configuration.Configuring the Profile DefinitionsUtilizing the Profiles feature, the V7122 provides high-level adaptation when connected to avariety of equipment (from both Tel and IP sides) and protocols, each of which requires adifferent system behavior. Using Profiles, users can assign different Profiles (behavior) on aper-call basis, using the Tel to IP and IP to Trunk Group Routing tables, or associatedifferent Profiles to the gateway’s B-channels(s). The Profiles contain parameters such asCoders, T.38 Relay, Voice and DTMF Gains, Silence Suppression, Echo Canceler, RTP
