Mediant 2000 SIP User’s Manual 5. Web ManagementVersion 4.4 55 July 20055.8.5 Configuring the Profile DefinitionsUtilizing the Profiles feature, the Mediant 2000 provides high-level adaptation when connected toa variety of equipment (from both Tel and IP sides) and protocols, each of which require adifferent system behavior. Using Profiles, users can assign different Profiles (behavior) on a per-call basis, using the Tel to IP and IP to Trunk Group Routing tables, or associate different Profilesto the gateway’s B-channels(s). The Profiles contain parameters such as Coders, T.38 Relay,Voice and DTMF Gains, Silence Suppression, Echo Canceler, RTP DiffServ and more. TheProfiles feature allows users to tune these parameters or turn them on or off, per source ordestination routing and/or the specific gateway or its ports. For example, specific E1/T! spans canbe designated for to have a profile which always uses G.711.Each call can be associated with one or two Profiles, Tel Profile and (or) IP Profile. If both IP andTel profiles apply to the same call, the coders and other common parameters of the preferredProfile (determined by the Preference option) are applied to that call. If the Preference of the Teland IP Profiles is identical, the Tel Profile parameters are applied.Note: The default values of the parameters in the Tel and IP Profiles are identical tothe Web/ini file parameter values. If a value of a parameter is changed in theWeb/ini file, it is automatically updated in the Profiles correspondingly. Afterany parameter in the Profile is modified by the user, modifications toparameters in the Web/ini file no longer impact that Profile.5.8.5.1 Coder Group SettingsUse the Coders Group Settings screen to define up to four different coder groups. These codergroups are used in the Tel and IP Profile Settings screens to assign different coders to Profiles.¾ To configure the coder group settings, take these 8 steps:1. Open the ‘Coder Group Settings’ screen (Protocol Management menu > ProfileDefinitions submenu > Coder Group Settings option); the ‘Coder Group Settings’ screen isdisplayed.Figure 5-9: Coder Group Settings Screen2. In the ‘Coder Group ID’ drop-down list, select the coder group you want to edit (up to fourcoder groups can be configured).3. From the coder drop-down list, select the coder you want to use. For the full list of availablecoders and their corresponding ptimes, refer to the ini file parameter ‘CoderName_ID’(described in Table 6-3).Note: Each coder can appear only once.4. From the drop-down list to the right of the coder list, select the size of the Voice Packet(ptime) used with this coder in milliseconds. Selecting the size of the packet determines howmany coder payloads are combined into one RTP (voice) packet.Note 1: The ptime packetization period depends on the selected coder name.
