SIP User's Manual 132 Document #: LTRT-68806
Mediant 2000 & TP-1610 & TP-260/UNI
5.5.4.7 Release Cause Mapping
The 'Release Cause Mapping' screen consists of two tables that allow the gateway to map
up to 12 different SIP Responses to Q.850 Release Causes and vice versa, thereby
overriding the hard-coded mapping mechanism (described in 'Release Cause Mapping' on
page 132).
¾ To configure the release cause mapping, take these 5 steps:
1. Open the 'Release Cause Mapping' screen (Protocol Management menu > Routing
Tables submenu > Release Cause Mapping option).
Figure 5-21: Release Cause Mapping Screen (e.g., ISDN to SIP)
2. In the 'Release Cause Mapping from ISDN to SIP' table, map (up to 12) different
Q.850 Release Causes to SIP Responses.
3. In the 'Release Cause Mapping from SIP to ISDN' table, map (up to 12) different SIP
Responses to Q.850 Release Causes.
4. Click the Submit button to save your changes.
5. To save the changes so they are available after a power fail, refer to 'Saving
Configuration' on page 256.
5.5.5 Configuring the Profile Definitions
The Profiles feature provides the gateway with high-level adaptation when connected to a
variety of equipment (from both Tel and IP sides) and protocols, each of which requires
different system behavior. You 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 Profiles to
the gateway's B-channels. The Profiles contain parameters such as Coders, T.38 Relay,
Voice and DTMF Gain, Silence Suppression, Echo Canceler, RTP DiffServ, Current
Disconnect and more. The Profiles feature allows users to customize these parameters or
turn them on or off, per source or destination routing and/or per the specific gateway trunks
or ports (channels). For example, specific E1/T1 spans can be designated 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
and Tel profiles apply to the same call, the coders and other common parameters of the
preferred Profile (determined by the Preference option) are applied to that call. If the
Preference of the Tel and IP Profiles is identical, the Tel Profile parameters take
precedence and are applied.
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