Altigen AltiContact Manager Version 5.0A, Administration Manual

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Configuring the Triton VoIP Board
6-10 AltiContact Manager Administration Manual
Troubleshooting—Common Symptoms and Solutions
The following are some of the most common problems you may encounter
and a list of steps to troubleshoot and resolve these problems.
Poor Voice Quality
When voice quality is poor, try the following:
1. Perform a Loop-Back Test . Call yourself by dialing out and dialing
back into yourself. If you don’t have any problems performing this
test, the problem is most likely in the network or at the remote site.
2. Check Traffic Between AltiContact Manager IP Stations . Open the
IP Trunk Current Traffic Statistics window and the AltiWare IP
Cumulative Traffic Statistics window in Contact Manager to view
network traffic.
3. Check the RTP and RTCP Settings . Make sure UDP port numbers
49152-49199 are not assigned to other applications. RTP/RTCP is the
acronym for Real-Time Transport (Control) Protocol, a transport
protocol for real-time applications used to transport packetized voice
packets over the IP network.
4. Check Network Configurations . Follow all network configuration
guidelines provided under “Network Configuration Guidelines for
VoIP” on page 9-9. Make sure the router, WAN bandwidth, and Jitter
Buffer are configured properly.
Cannot Make a Connection
1. Check Network Connectivity using “ping.”
2. Check Network Firewall Settings . See “Network Configuration
Guidelines for VoIP” on page 9-9 for more details.
3. Check IP Address of Destination System
4. Check the RTP and RTCP Settings . Make sure UDP port numbers
49152-49199 are not assigned to other applications. RTP/RTCP is the
acronym for Real-Time Transport (Control) Protocol, a transport
protocol for real-time applications used to transport packetized voice
packets over the IP network.
5. Check the AltiContact Manager IP Dialing Table for Dialed Digits
Length
. Refer to “Defining the IP Dialing Table” on page 9-2.