TVP-221H User’s Guide

The above process is the same for Gateway B phone 203 and 204 calls to Gateway A phone 201, 800 and 801.

Case 2: Gateway Phone to PSTN Phone

Gateway B phone 203 calls to PSTN phone A number 7777-1234

 

Caller Operation at GW B

Equipment Operation

Receiver Operation at GW A

 

 

 

 

 

 

 

 

Pick up phone 203 (204) on

1.

GW dial tone is heard.

 

 

 

GW B

2. GW B Line 3 LED

 

 

 

 

 

 

 

 

“ON”

 

 

 

 

 

 

 

 

 

Dial 01-7777-1234

1.

Du Du is heard

 

 

 

 

2.

VoIP call processing

 

 

 

 

 

 

 

 

 

Ring back tone is heard

1.

GW A Line 1 LED

 

 

 

 

“ON”

 

 

 

 

2.

GW A is connected to

 

 

 

 

PSTN

 

 

 

 

 

 

 

 

Ring back tone is heard

1.

PSTN call processing

Phone 7777-1234 is ringing

 

 

 

 

 

 

 

 

 

Receiver on 7777-1234 picks

 

 

 

 

up

 

 

 

 

 

 

VoIP Conversation

 

 

VoIP Conversation

 

 

 

 

 

 

The above dialing process is the same for phones 203, 204 to any GW A local PSTN phone number.

Case 3: PSTN Phone to Gateway Phone

Phone A, number 7777-1234 calling Gateway B phone 203

 

Caller Operation at

 

Equipment Operation

Receiver Operation at GW

 

 

Phone A

 

 

B phone 203

 

 

 

 

 

 

 

 

Pick up phone A

1.

PSTN dial tone is heard.

 

 

 

 

 

 

 

 

 

Dial 8888-2222

1.

Call being processed

 

 

 

 

2.

PBX plays voice greeting

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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TRENDnet TVP- 221H, VoIP Gateway manual Case 2 Gateway Phone to Pstn Phone, Case 3 Pstn Phone to Gateway Phone

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.