Managing your open source telecommunication needs has never been easier than with Rhino products. Rhino PCI plug-in cards satisfy the needs of Open Source Telephony (OST) applications, no matter how stringent the requirement. Rhino Open Source Telephony PCI cards feature Asterisk, Zapata and Linux tested software. Knowing that Rhino products are ready to perform right out of the box means that you can spend more time developing important customer relationships.

The Rhino R4FXO-EC is "ready to roll" with two incredible feature differentiation over our competition - our on-board control element, and our on-board Echo Cancellation circuit. The control element eliminates PCI bus “bit banging”, which means that the R4FXO requires less CPU power, and more Rhino cards can be used in one computer over alternative, antiquated solutions. The Echo Cancellation circuit provides echo protection no matter what, to ensure that calls are clear, crisp and echo free.

Rhino Equipment Corp. offers you a complete line of low cost PCI plug-in cards including Single T1/E1, Dual T1/E1, Quad T1/E1, Quad FXO analog, Octal FXS/FXO and 24-port analog fixed and mixed mode analog interfaces. And don’t forget the full line of Rhino Channel Bank products, for large scale analog FXS or FXO applications.

Using Asterisk? Rhino Open Source Analog Telephony PCI products allow you to utilize analog phones and wiring in conjunction with leading-edge Asterisk technology -- without having to buy expensive IP telephones. Why go IP when you can save on installations by using your proven existing wiring? Rhino allows you to use lower cost analog phones with digital features, get guaranteed T1 voice quality, all with less to worry about while enjoying other Asterisk features.

Rhino R4FXO-EC Overview

• Asterisk soft PBX tested and ready
• Zaptel-compliant open source Linux module source code
• On-board Texas Instruments and Adaptive Digital Technologies Echo Cancellation technology
• Proven Silicon Labs FXO DAA component - Si3050
• Silicon Labs international line interface device - Si3019
• Custom Rhino PCI interface chip means no excess CPU overhead
• Rhino on-board control element eliminates PCI bus bit banging. The R4FXO loads the PCI bus to no more than the load of a T1 card.
• Four RJ11 jacks at card bracket
• Field software upgradeable
• All major signaling modes supported
• Advanced features such as Caller ID and Distinctive Ring
• 5-year limited warranty

Echo Cancellation Technology

• On-board - no module
• Adaptive Digital Technologies G.168 Echo Canceller is a carrier-class, ITU G.168 compliant line echo canceller, which meets and exceeds G.168-2002
• Cancels up to 128msec tail - 1024 taps
• Non-linear processor
• Comfort Noise Generator
• Automatic tail search
• Excellent voice quality
• Cancels multiple independent tails
• Fast Convergence
• No divergence due to doubletalk
• Tone Disabler disables echo canceller during voiceband modem and FAX connections