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Voice Quality
The main goal of quality of service (QoS) is to help reduce or eliminate delay of voice packets that travel across a network.
Sub-Protocols
G.168
G.165
Compressed Real-Time Protocol (CRTP)
Type of Service (ToS)
Voice Queueing
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Technology Information
Technology White Paper
Understanding Delay in Packet Voice Networks
02-Feb-2006
Quality of Service for Voice over IP
13-Apr-2001
Configuration
Configuration Examples and TechNotes
Voice QoS: ToS-CoS Packet Marking for use with LLQ
02-Feb-2006
VoIP QoS for Frame Relay to ATM Interworking with LLQ, PPP LFI and cRTP
02-Feb-2006
VoIP over Frame Relay with Quality of Service (Fragmentation, Traffic Shaping, LLQ / IP RTP Priority)
02-Feb-2006
Operation and Troubleshooting
Maintain and Operate TechNotes
Identify, Supersede, and Maintain Compatible DSP Firmware Version Levels on C5510 DSPs
29-Sep-2014
(PDF - 78 KB)
Troubleshooting TechNotes
Modify Bandwidth Consumption Calculation for Voice Calls
11-Dec-2023
Managing Voice Quality with CVM and Telemate
26-Jun-2019
Recognizing and Categorizing Symptoms of Voice Quality Problems
14-Sep-2017
Troubleshoot Voice Quality Issues
25-May-2017
Identify, Supersede, and Maintain Compatible DSP Firmware Version Levels on C5510 DSPs
29-Sep-2014
(PDF - 78 KB)
Unified Communications VMware Snapshot Verification
06-Sep-2013
TDM Circuit DSP Clocking, Slippage and Synchronization Tech Note
12-Apr-2013
Identify, Supersede, and Maintain Compatible DSP Firmware Version Levels on C5510 DSPs
23-Feb-2009
Troubleshooting Echo Problems between IP Phones and IOS Gateways
02-Apr-2008
Voice-Related RFCs
27-Feb-2007
Frame Relay Fragmentation for Voice
20-Feb-2007
Defining Analog Voice
12-Feb-2007
Using the show call active voice Command to Troubleshoot Voice Quality Issues
31-Jul-2006
Troubleshooting Hissing and Static
18-Jul-2006
Frame Relay Traffic Shaping for VoIP and VoFR
02-Feb-2006
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