MAXCS ACM 6.5 Administration Manual 479
A
P P E N D I X
E
Troubleshooting
Troubleshooting VoIP: 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 MAXCS IP Stations
. Open the Current Resource Statistics
window (on the
View
menu) and the IP Cumulative Traffic Statistics window (on the
Report
menu) in MaxAdmin to view network traffic.
3.
Check the RTP and RTCP Settings
. RTP/RTCP stands for Real-Time Transport
(Control) Protocol, a transport protocol for real-time applications used to transport
packetized voice packets over the IP network. Make sure UDP port numbers (49152
+ n*512) ~ (49152 + n*512+p*2), where “n” is the gateway ID and “p” is the
number of IP resource channels, are not assigned to other applications.
Note:
You can find this range displayed in the Current Resource Statistics window in
the
Local Ports
column.
4.
Check Network Configurations
. Follow all network configuration guidelines
provided under “Network Configuration Guidelines for VoIP” on page 327. Make sure
the router, WAN bandwidth, and Jitter Buffer are configured properly.
Cannot Make a Connection
If a connection cannot be made, check the following:
1. Check network connectivity using “ping.”
2. Check network firewall settings. See “Network Configuration Guidelines for VoIP” on
page 327 for details.
3. Check the IP address of the destination system.
4. Check the RTP and RTCP settings. Make sure UDP port numbers 49152-49199 are
not assigned to other applications. RTP/RTCP stands for Real-Time Transport
Содержание ACM 6.5
Страница 1: ...MAX Communication Server Administration Manual ACM 6 5 Update1 4 2010 4413 0001 6 5 Update1 ...
Страница 16: ...2 MAXCS ACM 6 5 Administration Manual ...
Страница 36: ...Overview 22 MAXCS ACM 6 5 Administration Manual ...
Страница 46: ...Troubleshooting Error Messages 32 MAXCS ACM 6 5 Administration Manual ...
Страница 58: ...Stopping the AltiGen Switching Service 44 MAXCS ACM 6 5 Administration Manual ...
Страница 88: ...Feature Profiles 74 MAXCS ACM 6 5 Administration Manual ...
Страница 104: ...Creating Distribution Lists 90 MAXCS ACM 6 5 Administration Manual ...
Страница 130: ...Configuring Call Recording 116 MAXCS ACM 6 5 Administration Manual ...
Страница 134: ...Application Extension Setup 120 MAXCS ACM 6 5 Administration Manual ...
Страница 190: ...Configuring the Virtual MobileExtSP Board 176 MAXCS ACM 6 5 Administration Manual ...
Страница 196: ...DNIS Routing 182 MAXCS ACM 6 5 Administration Manual ...
Страница 208: ...Resolving Dialing Delay for Non USA Canada Countries 194 MAXCS ACM 6 5 Administration Manual ...
Страница 246: ...Setting an IP Extension 232 MAXCS ACM 6 5 Administration Manual ...
Страница 260: ...Configuring Auto Discovery of Server IP Address 246 MAXCS ACM 6 5 Administration Manual ...
Страница 288: ...274 MAXCS ACM 6 5 Administration Manual ...
Страница 330: ...MaxCall Configuration 316 MAXCS ACM 6 5 Administration Manual ...
Страница 340: ...Joining a Meeting 326 MAXCS ACM 6 5 Administration Manual ...
Страница 390: ...When Information May Be Out of Sync 376 MAXCS ACM 6 5 Administration Manual ...
Страница 442: ...Setting Up the Client 428 MAXCS ACM 6 5 Administration Manual ...
Страница 488: ...474 MAXCS ACM 6 5 Administration Manual ...
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