TVP-221H User’s Guide

Common Parameters

37

Total Time

38

First Digit Wait Time

38

Inter Digit Wait Time

38

Termination Digit

38

4.6

Channel Parameters

38

4.7

Administration

38

Administration Password Setup / Login

39

Remote Administration

40

Upgrading Firmware Using the Web Browser

41

Interface Speed

43

4.8

Channel Status

43

4.9

Help

43

CHAPTER 5

44

MAKING CALLS WITH TVP-221H

44

5.1

Configuration Examples

44

Default Dial Plan

44

5.2

Making a call with TVP-221H FXS Port

45

5.3

Making a call with TVP-221H FXO Port

46

5.4

Web Browser Sample Dial Plan

46

5.5

Making a call between Gateway A and Gateway B

53

Case 1: Gateway Phone to Gateway Phone

53

Case 2: Gateway Phone to PSTN Phone

54

Case 3: PSTN Phone to Gateway Phone

54

5.6

VoIP in a Dynamic IP environment

55

5.7

PPPoE, DHCP, and DDNS clients:

55

Case 4: Gateway Prefix–Simplified Gateway Phone to Gateway Phone

55

5.8

(NAT) router with built-in DDNS client

61

Case 5: Gateway Prefix-Simplified Gateway Phone to Gateway Phone

61

Case 6: PLAR (Hotline) FXO to FXS example

71

Case 7: PLAR (Hotline) FXS to FXO example

73

Case 8: PLAR (Hotline) FXO to FXO example

74

CHAPTER 6

77

CONNECTION CONSIDERATIONS

77

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TRENDnet TVP- 221H, VoIP Gateway manual Chapter, TVP-221H User’s Guide

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.