It, also, works as a normal PSTN phone. It looks and feels like a normal PSTN phone. A DIAL-UP button differentiates an Internet phone call.

• Two-in-one device supports Internet and PSTN phone calls.
  
  
• Standard based device, works with all Internet Service Provider (ISP), VoIP service providers, and PC based soft phones.
  
  
• Easy to use set-up, guided by voice prompts in local language.
  
  
• Intelligent selection of codec (G.723 or G.729A) based on Internet connection speed.
  
  
• Excellent voice quality and low end-to-end delay using low latency adaptive jitter buffer, silence suppression, and comfort noise generation techniques.
  
  
• User-friendly hands-free dialling method.
  
  
• Make multiple calls without connecting to the Internet each time.
  
  
• Last number redial and adjustable speaker volume control.
  
  
• Password protection to your valuable configuration information.
  
  
• Remote software update support.

• DUV-1000 needs to be configured once and there is no need to configure it again unless there is change in Internet access or calling card information.
  
  
• DUV-1000 is a standard based device and works with any Internet Service Provider (ISP) and VoIP (Internet telephone) service provider. It plays user-friendly status messages and configuration messages in a language of your choice.
  
  
• DUV-1000 has a user-friendly dialing option whereby you just dial the number. It will try many times and ring back when the called party answers the call.
  
  
• DUV-1000 software can be upgraded over the Internet for new features and functions.
  

You will need the following to use DUV-1000.

• AC power outlet (230V, 50Hz)
  
  
• Local telephone line connection
  
  
• Access to dial-up Internet connection (via ISP) that is PPP compatible
  
  
• Account with a VoIP (Internet Telephone) service provider