Using Asterisk, Rhino Open Source 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 existing wiring With Rhino you can use lower cost analog phones with digital features and get guaranteed T1 voice quality, all while enjoying Asterisk VoIP technology for off-premise connectivity.

Rhino products are tough. In the rare case of trouble, our technical support staff is ready to give you the support you need, when you need it. Our 5-year limited warranty means that you can be confident that Rhino will always work hard and work well in your T1/E1 application.

The Rhino R4T1 card has four T1/E1 ports.

Feature Support

• Asterisk soft PBX tested and ready
• Zaptel compliant open source module source code included
• Fully compatible with all Zaptel supported T1/E1/PRI/ISDN configurations
• T1/E1 embedded CSU
• Line buildout software selectable
• Custom Rhino PCI interface chip means no wasted CPU overhead
• Fractional voice and data capable
• Zttool compliant interface
• Field software upgradable
• Alarm and Link status LEDs visible from the rear bracket
• E&M, PRI, Loop, Ground, Kewl, PRI, etc, signaling protocols
• Distinctive ring in Loop start mode
• Caller ID enabled in Loop start mode
• 5-year limited warranty
• Unlimited Support

CSU Features

• All Rhino PCI T1/E1 cards feature a single chip integrated CSU with both LIU and Framer, that is software controlled and software programmable.
• Complete T1/DS1/ISDN-PRI/E1 Transceiver Functionality
• Long-Haul and Short-Haul Line Interface for Clock/Data Recovery and Waveshaping
• Crystal-Less Jitter Attenuator
• Fully Independent Transmit and Receive Functionality
• Single chip line interface unit (LIU) and Framer