92 V7122 GatewayUser GuideFigure 33 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 Saving Configuration.Configuring the Profile DefinitionsUtilizing the Profiles feature, the gateway provides high-level adaptation when connected toa variety 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, RTPDiffServ and more. The Profiles feature allows users to tune these parameters or turn themon or off, per source or destination routing and/or the specific gateway or its ports. Forexample, specific E1/T spans can be designated for to have a profile which always usesG.711.Each call can be associated with one or two Profiles, Tel Profile and (or) IP Profile. If both IPand Tel profiles apply to the same call, the coders and other common parameters of thepreferred Profile (determined by the Preference option) are applied to that call. If thePreference of the Tel and IP Profiles is identical, the Tel Profile parameters are applied.The default values of the parameters in the Tel and IP Profiles are identical to theWeb/ini file parameter values. If a value of a parameter is changed in the Web/inifile, it is automatically updated in the Profiles correspondingly. After any parameterin the Profile is modified by the user, modifications to parameters in the Web/ini fileno longer impact that Profile.Coder Group SettingsUse the Coder Group Settings screen to define up to four different coder groups. Thesecoder groups are used in the Tel and IP Profile Settings screens to assign different coders toProfiles.
