Broadband Router with 2 Phone Ports

The Voice Tab - System

STUN (Simple Traversal of UDP through NATs) is a protocol that enables Internet phone calls to travel between your local network and the Internet. Not all Internet phone service providers use the STUN protocol; however, if your provider does, then configure the settings on this screen to enable your Internet phone calls. (All the settings should be supplied by your Internet phone service provider.)

NOTE: Depending on your Internet phone service provider’s policies, your access to the Router’s configuration settings may be restricted, so you may not be able to access the Voice tab of the Web-based Utility.

If your Internet phone service provider sent you the Router, then it may be pre-configured for you, and you do not need to change any settings. However, if you want to make configuration changes, then you should visit the website of your Internet phone service provider and make these changes online. The updated settings will be remotely downloaded to the Router. For more information, refer to the instructions provided by your service provider.

STUN Settings

STUN Server Address. Enter the IP address of the STUN (Simple Traversal of UDP through NATs) server that the Router will use.

RTP Port Range Start. Enter the starting port number of the RTP port range. In most cases, you should keep the default setting, 16384.

RTP Port Range End. Enter the end port number of the RTP port range. In most cases, you should keep the default setting, 16482.

When you have finished making changes to this screen, click the Save Settings button to save the changes, or click the Cancel Changes button to undo your changes. Help information is shown on the right-hand side of a screen. For additional information, click More.

Chapter 5: Configuring the Router

Figure 5-17: Voice Tab - System

stun (simple traversal of udp through nats): A protocol that enables specialized applications, such as Internet phone calls, video, and audio, to travel between your local network and the Internet. STUN is a specific type of NAT traversal.

rtp (real-time transport protocol): A protocol that enables specialized applications, such as Internet phone calls, video, and audio, to occur in real time.

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The Voice Tab - System

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Linksys RT31P2-NA manual Voice Tab System, Stun Settings
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RT31P2-NA specifications

The Linksys RT31P2-NA is a versatile voice-over-IP (VoIP) router designed to seamlessly combine internet connectivity with telephone services. Targeted at home users and small businesses, the device acts as a gateway through which users can connect multiple computers and internet-enabled devices while also facilitating digital phone services.

One of the standout features of the RT31P2-NA is its ability to support multiple voice lines, allowing users to make and receive calls while simultaneously using the internet. This dual functionality is made possible by its built-in VoIP capabilities, which leverage Session Initiation Protocol (SIP) technology, ensuring high-quality voice calls without interruptions from internet traffic.

In terms of connectivity, the router includes a standard Ethernet WAN port and four Ethernet LAN ports, providing ample options for wired connections to various devices. This setup is ideal for households or small offices that require stable, high-speed internet access across numerous devices. Additionally, the router features two telephone ports, allowing users to connect traditional analog phones directly for VoIP services.

Security is a key characteristic of the RT31P2-NA. It incorporates advanced security protocols such as WPA2 encryption and firewall capabilities to protect users' networks from unauthorized access and cyber threats. The router also supports Quality of Service (QoS) features, enabling users to prioritize bandwidth allocation for voice calls and other critical applications, ensuring minimal lag and superior call quality.

The design of the RT31P2-NA is user-friendly, with an intuitive interface that simplifies the setup process. The integrated configuration wizard helps users connect to their internet service and set up telephony services with ease. Furthermore, firmware updates can be easily managed, keeping the device secure and running optimally.

Moreover, Linksys is known for its reliable customer support and warranty services, which enhance the overall experience for users. The RT31P2-NA is a robust option for individuals and small businesses looking to streamline their communication needs while enjoying reliable internet connectivity. Whether for personal use or office applications, this router delivers a balanced mix of performance, functionality, and ease of use.
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