User's Manual
Table Of Contents
- Cisco WRP500 Administration Guide
- Contents
- 1
- WRP500 Features and Benefits
- Deployment Models
- Local Area Network Guidelines
- Special Requirements for Voice Deployments
- WRP500 Maintenance Operations
- Remote Provisioning
- Configure NAT Mapping
- Configure NAT Mapping with a Static IP Address
- Step 1 Log in as administrator.
- Step 2 Under the Voice menu, click SIP.
- Step 3 In the NAT Support Parameters section, enter the following settings:
- Step 4 Under the Voice menu, click Line 1 or Line 2 to choose the line interface that you want to modify.
- Step 5 In the NAT Settings section, enter the following settings:
- Step 6 Click Save Settings.
- Configure NAT Mapping with STUN
- Step 1 Log in as administrator.
- Step 2 Under the Voice menu, click SIP.
- Step 3 In the NAT Support Parameters section, enter the following settings:
- Step 4 Under the Voice menu, click Line 1 or Line 2 to choose the line interface that you want to modify.
- Step 5 In the NAT Settings section, enter the following settings:
- Step 6 Click Save Settings.
- Determine Whether the Router Uses Symmetric or Asymmetric NAT
- Step 1 Make sure you do not have firewall running on your computer that could block the syslog port (port 514 by default).
- Step 2 Log in as administrator.
- Step 3 To enable debugging, complete the following tasks:
- Step 4 To collect information about the type of NAT your router is using, complete the following tasks:
- Step 5 To enable SIP signaling, complete the following task:
- Step 6 Click Submit.
- Step 7 View the syslog messages to determine whether your network uses symmetric NAT. Look for a warning header in the REGISTER messages, such as Warning: 399 spa "Full Cone NAT Detected.”
- Configure NAT Mapping with a Static IP Address
- Firewalls and SIP
- Configure SIP Timer Values
- Analog Telephone Adapter Operations
- ATA Software Features
- Register to the Service Provider
- Step 1 Log in as administrator.
- Step 2 Under the Voice menu, click Line 1 or Line 2 to choose the line interface that you want to modify.
- Step 3 In the Proxy and Registration section, enter the Proxy.
- Step 4 In the Subscriber Information section, enter the User ID and Password.
- Step 5 Click Submit. The devices reboot.
- Step 6 To verify your progress, perform the following tasks:
- Manage Caller ID Service
- Optimize Fax Completion Rates
- Step 1 Ensure that you have enough bandwidth for the uplink and the downlink.
- Step 2 To optimize G.711 fallback fax completion rates, set the following on the Line tab of your ATA device:
- Step 3 If you are using a Cisco media gateway for PSTN termination, disable T.38 (fax relay) and enable fax using modem passthrough.
- Step 4 Enable T.38 fax on the WRP500 by configuring the following parameter on the Line tab for the FXS port to which the FAX machine is connected:
- Step 5 If you are using a Cisco media gateway use the following settings:
- Fax Troubleshooting
- Step 1 Verify that your fax machine is set to a speed between 7200 and 14400.
- Step 2 Send a test fax in a controlled environment between two ATAs.
- Step 3 Determine the success rate.
- Step 4 Monitor the network and record the following statistics:
- Step 5 If faxes fail consistently, capture a copy of the voice settings by selecting Save As > Web page, complete from the administration web server page. You can send this configuration file to Technical Support.
- Step 7 Identify the type of fax machine connected to the ATA device.
- Step 8 Contact technical support:
- Silence Suppression and Comfort Noise Generation
- Configure Dial Plans
- About Dial Plans
- Edit Dial Plans
- Enter the Line Interface Dial Plan
- Step 1 Start Internet Explorer, connect to the Configuration Utility, choose Voice > Admin Login. If prompted, enter the administrative login provided by the Service Provider. (The default username and password are both admin.)rovided by your Service...
- Step 2 Under the Voice menu, click Line 1 or Line 2, depending on the line interface that you want to configure.
- Step 3 Scroll down to the Dial Plan section.
- Step 4 Enter the digit sequences in the Dial Plan field. For more information, see “About Dial Plans,” on page 11.
- Step 5 Click Submit.
- Reset the Control Timers
- Step 1 Start Internet Explorer, connect to the Configuration Utility, choose Voice > Admin Login. If prompted, enter the administrative login provided by the Service Provider. (The default username and password are both admin.)rovided by your Service...
- Step 2 Under the Voice menu, click Regional.
- Step 3 Scroll down to the Control Timer Values section.
- Step 4 Enter the desired values in the Interdigit Long Timer field and the Interdigit Short Timer field. Refer to the definitions at the beginning of this section.
- Enter the Line Interface Dial Plan
- Secure Call Implementation
- Info page
- System page
- SIP page
- Regional page
- Line page
- Line Enable section
- Streaming Audio Server (SAS) section
- NAT Settings section
- Network Settings section
- SIP Settings section
- Proxy and Registration section
- Subscriber Information section
- Supplementary Service Subscription section
- Audio Configuration section
- Dial Plan section
- FXS Port Polarity Configuration section
- User page
- Setup
- Wireless Configuration
- Security
- Access Restrictions
- Applications and Gaming
- Administration
- Status
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Cisco WRP500 Administration Guide
Chapter 3 Configure Voice Services
Silence Suppression and Comfort Noise Generation
Step 4 Monitor the network and record the following statistics:
• Jitter
• Loss
• Delay
Step 5 If faxes fail consistently, capture a copy of the voice settings by selecting Save As > Web page,
complete from the administration web server page. You can send this configuration file to Technical
Support.
STEP 6 Enable and capture the debug log. For instructions, refer to Appendix C, “Troubleshooting.”
Note You may also capture data using a sniffer trace.
Step 7 Identify the type of fax machine connected to the ATA device.
Step 8 Contact technical support:
• If you are an end user of VoIP products, contact the reseller or Internet telephony service
provider (ITSP) that supplied the equipment.
• If you are an authorized Cisco partner, contact Cisco technical support.
Silence Suppression and Comfort Noise Generation
Voice Activity Detection (VAD) with Silence Suppression is a means of increasing the number of calls
supported by the network by reducing the required bandwidth for a single call. VAD uses a sophisticated
algorithm to distinguish between speech and non-speech signals. Based on the current and past statistics,
the VAD algorithm decides whether or not speech is present. If the VAD algorithm decides speech is not
present, the silence suppression and comfort noise generation is activated. This is accomplished by
removing and not transmitting the natural silence that occurs in normal two-way connection. The IP
bandwidth is used only when someone is speaking. During the silent periods of a telephone call,
additional bandwidth is available for other voice calls or data traffic because the silence packets are not
being transmitted across the network.
Comfort Noise Generation provides artificially-generated background white noise (sounds), designed to
reassure callers that their calls are still connected during silent periods. If Comfort Noise Generation is
not used, the caller may think the call has been disconnected because of the “dead silence” periods
created by the VAD and Silence Suppression feature.
Silence suppression is configured in the Line and PSTN Line tabs. See Appendix B, “Data Fields.”
Configure Dial Plans
Dial plans determine how the digits are interpreted and transmitted. They also determine whether the
dialed number is accepted or rejected. You can use a dial plan to facilitate dialing or to block certain
types of calls such as long distance or international.