TVP-221H User’s Guide

Dynamic DNS

It allows Internet users to connect to your gateway using a static URL, rather than an IP Address. This is particularly useful because a dynamic IP address, by definition, is constantly changing making it difficult for internet users to find you.

The Service works as follows:

1.Obtain a free account for the service by registering at http://www.dyndns.org.

2.www.dyndns.org will automatically notify you confirming your account information.

3.Return to http://www.dyndns.org and use the "Create New Host" option to register your preferred Domain name. It is recommended that you register a name within the xxxx.dyndns.org hostname.

4.Details of your http://www.dyndns.org account (Name, password, Domain name) must then be entered and saved in the DDNS page of the TVP-221H. The TVP- 221H will then automatically notify DynDNS of your changing IP Address and DynDNS will in turn, map it to your registered Domain Name. Internet users will now be able to easily connect to your Virtual Servers (or DMZ PC) using your easy to remember Domain name.

Dynamic DNS Screen

Select Internet on the main menu, then Dynamic DNS, to see a screen like the following:

Figure 1: DDNS Screen

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TRENDnet TVP- 221H, VoIP Gateway manual Dynamic DNS Screen
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VoIP Gateway, TVP- 221H specifications

The TRENDnet TVP-221H is a robust VoIP Gateway designed for seamless communication in both residential and small business environments. This device is engineered to facilitate the transmission of voice calls over the internet, leveraging Voice over Internet Protocol (VoIP) technology to enhance communication efficiency and reduce costs associated with traditional telephony.

One of the standout features of the TVP-221H is its dual FXS ports, which allow users to connect standard analog phones or fax machines directly to the gateway. This ensures compatibility with existing equipment, providing a smooth transition from conventional phone services to VoIP solutions. The device supports a wide range of codecs including G.711, G.723, G.726, and G.729, ensuring high-quality, clear voice transmission suitable for various bandwidth requirements.

The TRENDnet TVP-221H also boasts an intuitive web-based interface, making it easy for users to configure and manage their VoIP settings. This feature provides accessibility for remote management, enabling quick adjustments to settings and ensuring that the system is always optimized for performance. In addition, the gateway supports advanced call features such as call waiting, caller ID, and call forwarding, enhancing overall user experience and functionality.

In terms of security, the device incorporates support for SIP TLS and SRTP, providing encryption for signaling and media streams respectively. This ensures that voice communications are kept secure from potential eavesdropping or tampering, critical in today's digital landscape where privacy is a priority.

The TRENDnet TVP-221H is also designed with quality of service (QoS) features to prioritize voice traffic, ensuring smooth call performance even in environments with heavy internet usage. It also supports automatic provisioning and firmware upgrades, simplifying updates and maintenance workflows.

With its compact design, the device can be easily mounted on a wall or placed on a desk, offering flexibility in installation. Its low power consumption and efficient operation also make it an eco-friendly choice for businesses looking to minimize their energy footprint while enhancing communication capabilities.

In summary, the TRENDnet TVP-221H VoIP Gateway is an essential tool for modern communication, providing reliable performance, advanced features, and a user-friendly experience. Its combination of security, call management capabilities, and ease of use makes it a top choice for anyone looking to improve their telephony solutions.
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