AudioCodes Mediant 800B - Page 336

User's Manual 336 Document #: LTRT-10632
Mediant 800B Gateway & E-SBC
When the device rejects calls to an IP Group based on a Quality of Service rule, it raises an
SNMP alarm (acIpGroupNoRouteAlarm). The alarm is also raised upon a keep-alive failure
with the IP Group. For more information, refer to the SNMP Reference Guide.
 Use a different IP Profile for the IP Group or current call. This action can be useful, for
example, when poor quality occurs due to packet loss and the device can then switch to an
IP Profile configured with a higher RTP redundancy level or lower bit-rate coder.
To learn more about which actions are supported per call metric, see the description of the 'Rule
Action' parameter below.
To configure thresholds, see the following sections:
 Voice Quality (MOS) - 'Configuring Quality of Experience Profiles' on page 327
 Bandwidth - 'Configuring Bandwidth Profiles' on page 332
 ASR, ACD and NER - 'Configuring Performance Profiles' on page 939
Note: The section is applicable only to the SBC application.
The following procedure describes how to configure Quality of Service rules through the Web
interface. You can also configure it through ini file (QualityOfServiceRules) or CLI (configure voip
> qoe quality-of-service-rules).
 To configure a Quality of Service rule:
1. Open the Quality of Service Rules table (Setup menu > Signaling & Media tab > Media
folder > Quality of Service Rules).
2. Click New; the following dialog box appears:
Figure 16-7: Quality of Service Rules Table - Dialog Box
3. Configure a rule according to the parameters described in the table below.
4. Click Apply, and then reset the device with a save-to-flash for your settings to take effect.
Table 16-6: Quality of Service Rules Table Parameter Descriptions
Parameter Description
Match
Index
[QualityOfServiceRules_Index]
Defines an index number for the new table row.
Note: Each row must be configured with a unique index.
IP Group
ip-group-name
[QualityOfServiceRules_IPGroupName]
Assigns an IP Group. The rule applies to all calls belonging
to the IP Group.