Allo 4FXO Analog Gateway Card

This high-performance card supports four Foreign Exchange Office (FXO) ports, enabling businesses to connect traditional phone lines to their IP-based communication infrastructure. The Allo active analog card takes care of most operations on board, thus reducing the load on the CPU. Furthermore, it is detected as a network card in both Linux and Windows systems.

Once the driver is installed in your system, you can start configuring the card through an easy-to-use interface and use it with your preferred PBX platform (3CX, Asterisk, Elastix…). Hardware DSP for Line Echo Cancellation (carrier grade 128ms) and transcoding is included.

Key Features

• Compatible with 3CX, Elastix, Asterisk, Trixbox, FreePBX, FreeSwitch and others
• Windows/Linux compatible (all versions)
• On board 128ms hardware Line Echo Cancellation DSP
• On board Transcoding (G711 ulaw/alaw, G722, G723.1, G729) DSP
• Four analogue ports (FXO or FXS)
• T.38 fax relay
• Pre-configured for an almost plug-and-play experience
• Clean and easy-to-understand GUI
• Caller ID supported
• DTMF Digit Detection and Generation supported
• SIP User Agent IETF RFC3261 compliant

Target Applications

• Voice-over-Internet Protocol (VoIP) Services
• Legacy PBX Services
• Complex IVR Trees
• VoIP Gateways
• Calling Card Platforms