TVP-221H User’s Guide

in Taiwan (Local Area Code have 2 digits) and GW B is in the US (Local Area Codes have 3 digits).

Gateway A, 4 ports, is configured as follows:

1.Gateway A IP: 192.168.1.20, mask IP: 255.255.255.0, gateway IP 0.0.0.0 (virtual IP)

2.FXS Port 2 has a telephone set connected, its phone number is “203”

3.FXS Port 3 has a telephone set connected, its phone number is “204”

4.FXO Port 0 is connected to PBX. There are two telephone sets connected to the PBX. Their extension numbers are “800” and “801”.

5.FXO Port 0 is registered as number “9” and it is connected to PBX

6.PBX has an external line to PSTN. Dialing “9” connects you PBX, where “9” is dialed to connect to PSTN.

7.The PSTN number to reach the PBX is “8888-2222”.

8.Telephone A’s number is “7777-1234” and belongs to the local PSTN

Gateway B, 4 ports, is configured as follows:

1.Gateway B IP: 192.168.1.55, mask IP: 255.255.255.0, gateway IP 0.0.0.0 (virtual IP)

2.FXS Port 2 has an analog telephone set connected, its phone number is “203”

3.FXS Port 3 has an analog telephone set connected, its phone number is “204”

4.FXO Port 0 is registered as number “9”. Dialing “9” connects you to the outside line.

5.FXO Port 0 is connected to PSTN line “9999-3333”.

6.Telephone B’s number is “6666-4321” and belongs to the local PSTN.

Gateway A - IP setup:

1.Navigate to Internet Access / Fixed IP Menu

2.Type in IP Address: 192.168.1.20, Subnet Mask: 255.255.255.0 and Default IP

Gateway Address: 0.0.0.0 in the related fields.

3.Click on “Save”

4.Click on “Reboot”

Gateway B – IP Setup:

5.Navigate to Internet Access / Fixed IP Menu.

6.Type in IP Address: 192.168.1.55, Subnet Mask: 255.255.255.0 and Default IP

Gateway Address: 0.0.0.0 in the related fields.

7.Click on “Save”

8.Click on “Reboot”

Gateway A: Dial Plan Setup

FXS Ports to Analog Phones - Gateway A has two phones on the FXS ports. Telephone number 203 on Port 2 and 204 on Port 3. These numbers are part of the default dial plan and do not have to be entered. We can skip the local Dial Plan setup including Telephone Address, hunt group and destination for phones 203 and 204.

How to Enter the Dial Plan

The Dial plan consists of three tables that include the Telephone Table, Hunt Group (eg. Customer Service may have multiple phones that the GW must search through for an open line), and Destination Table (Both Local and Remote). The dial plan has to be entered into all Gateways so that the local gateway knows how to process calls, sending them to its local ports or to remote gateways for further processing.

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TRENDnet TVP- 221H, VoIP Gateway manual Gateway a IP setup
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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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