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DSP Voice Quality Metrics for MGCP
  Information About DSP Voice Quality Metrics for MGCP
3
Cisco Unified CallManager and Cisco IOS Interoperability Guide
For more information on the DSP voice quality statistics that can be gathered on Cisco media gateways 
and how to configure the priority settings on the media gateway, see the
 feature module.
Parameter Priorities
Running voice quality statistics can impact the router performance. To reduce performance issues, the 
data can be provisioned by priority. 
Priority 1 parameters are: DSP/TX, DSP/RX, DSP/PD, DSP/LE, DSP/EC, DSP/CS, DSP/DL.
Priority 2 parameters are: DSP/PE, DSP/ER, DSP/IC, DSP/KF, DSP/RF, DSP/UC. Priority 2 
parameters include all of the priority 1 parameters as well.
Call Detail Records
Call Detail Records (CDRs) for voice calls can be output in RADIUS VSAs or system log (syslog) 
messages. A RADIUS server can be configured to collect accounting data during the accounting process 
for each call leg created on the Cisco voice gateway. An integration partner can use this information for 
post-processing activities, such as generating billing records and network analysis. 
IP Service Level Agreements
Cisco IOS IP Service Level Agreements (SLAs) allows you to analyze IP service levels for IP 
applications and services, to increase productivity, to lower operational costs, and to reduce the 
frequency of network outages. Cisco IOS IP SLAs uses active traffic monitoring—the generation of 
traffic in a continuous, reliable, and predictable manner—for measuring network performance. Using 
Cisco IOS IP SLAs, service provider customers can measure and provide service level agreements, and 
enterprise customers can verify service levels, verify outsourced service level agreements, and 
understand network performance. Cisco IOS IP SLAs can perform network assessments, verify quality 
of service (QOS), ease the deployment of new services, and assist administrators with network 
troubleshooting. You can Cisco IOS IP SLAs using the Cisco IOS command-line interface (CLI) or 
Simple Network Management Protocol (SNMP) through the Cisco Round-Trip Time Monitor 
(RTTMON) and SYSLOG Management Information Bases (MIBs). 
You can find detailed information about Cisco IP SLAs in the following documents:
If you want to configure multiple Cisco IOS IP SLAs operations at once, see the “
 chapter of the Cisco IOS IP SLAs Configuration Guide
Release 12.4.
If you want to configure threshold parameters for an IP SLAs operation, see the “
” chapter of the Cisco IOS IP SLAs Configuration Guide
Release 12.4.
If you want to configure other types of IP SLAs operations, see the “Where to Go Next” section of 
the “
” chapter of the Cisco IOS IP SLAs Configuration Guide, Release 
12.4.