The Fusion Voice Engine is designed for a variable number of voice channels. It also provides a modular architecture that allows the user to plug in different algorithms. The Fusion Voice Engine is coupled to the PSTN call manager and the Legerity LE88221/241 FXS device driver.

Unicoi Voice Engine Features:

• Comfort Noise generation
• Adaptive Jitter Buffer
• Support for audio codecs G.711, G.726, G.729AB, G.723
• Support for G.168 Echo cancellation
• RX and TX gain settings per voice channel.
• LE88221/241 driver
• DTMF detection and generation
• AGC for speaker phones
• Conference call capabilities.
• Tone detection for fax and other call signaling capabilities
  
  

The Unicoi Voice (VoIP) Gateway consists of the following modules:

• Router Gateway
  
• VoIP Adapter
  
• Security Module
  
• Networking Module
  
• PSTN Call Manager
  
• Fusion RTOS
  
• Voice Processing Suite
  
• Hardware Drivers Module
  
• Support Module

*A reference design is a sample electronics circuit design that shows engineers how to utilize the latest developments in microchips in their own products. Using a reference design as a base, it is possible today for a device manufacturer to incorporate a new technology into existing designs in a few weeks, and have products available to ship not long after.