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
REVIEW DRAFT #1—CISCO CONFIDENTIAL
1-9
Cisco WRP500 Administration Guide
Chapter 1 Product Overview and Deployment Guidelines
Special Requirements for Voice Deployments
NAT Mapping for Voice over IP Deployments
Network Address Translation (NAT) is the function that allows multiple devices in your small business
network to share one external (public) IP address that you receive from your Internet Service Provider.
Voice over IP can co-exist with NAT only when some form of NAT traversal is provided.
Some Internet Telephone Service Providers (ITSPs) provide NAT traversal, but some do not. For voice
deployments, it is strongly recommended that you choose an ITSP that supports NAT mapping
through a Session Border Controller.
If your ITSP does not provide NAT mapping through a Session Border Controller (the preferred
method), you have three options for providing NAT traversal on your WRP500:
• Deploy an edge device that has a SIP ALG (Application Layer Gateway). The Cisco Small
Business WRV200 is suited for this purpose, but other SIP-ALG routers can be used. If your
Internet Service Provider is providing the edge device, check with your provider to determine
if the router has a SIP ALG.
• Configure NAT mapping with the EXT IP setting. This option requires that you have (1) a
static external (public) IP address from your Internet Service Provider and (2) an edge device
with a symmetric NAT mechanism. If the WRP500 is the edge device, the second requirement
is met. For more information about the EXT IP setting, see the “NAT Support Parameters
section” section on page A-11.
• Configure Simple Traversal of UDP through NAT (STUN). This option requires that you have
(1) a dynamic external (public) IP address from your service provider, (2) a computer running
STUN server software, and (3) an edge device with an asymmetric NAT mechanism. If the
WRP500 is the edge device, the third requirement is not met. For more information about the
STUN Enable setting and the STUN Test Enable setting, see “NAT Support Parameters
section” section on page A-11.
Local Area Network Design for Voice Deployments
Use the following guidelines to manage the LAN setup for voice deployments.
• Ensure that all telephones are located in the same local area network subnet.
• Configure your WRP500 as a DHCP server for the purpose of easily adding network devices to the
system. Ensure that the DHCP server can assign enough IP addresses to serve the devices that you
need to connect to your network.
• Use stable DNS server addresses for URL name resolution. Your Internet Service Provider can
provide the primary and secondary DNS server IP addresses.
• If you need to directly connect more than four network devices (other than wireless devices), you
will need to connect an Ethernet switch to the WRP500. For voice deployments, Cisco recommends
use of the SLMxxxP, SRWxxxP and SRWxxxMP switch product families. The SLM224P is a
popular choice. For more information about these switches, visit the following URL:
www.cisco.com/cisco/web/solutions/small_business/products/routers_switches/index.html
• If you use an Ethernet switch, configure it to ensure voice quality. The following settings are
recommended: