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This document gives an overview of the Elite Gateway* and a detailed description of its front panel and back panel.
Features
The Elite Gateway is a cost-effective and highly reliable analog Voice over IP (VoIP) Gateway that offers toll quality voice and real-time fax data over IP networks. With its embedded architecture, the gateway is ideal for VoIP applications associated with Remote Office and Branch Office (ROBO) environments. With its built-in user-friendly interface, the gateway may be installed easily and conveniently to yield immediate cost savings. One Internet Telephony Gateway supports up to eight voice or Fax communications simultaneously.
Implemented with an efficient Real-Time Operating System (RTOS) and flash memory, the Elite Gateway provides upgradeable capabilities, so it may be programmed with updated firmware locally or via the network at any time. It comes equipped with remote management capabilities, configurable signaling to work with PBX, KTS, and/or telephone. The Elite Gateway utilizes advanced VoIP related technology. It includes various voice coders and fax algorithms, echo cancellation, Voice Activity Detection (VAD) , Comfort Noise Generation (CNG) , and lost packet recovery algorithms.
Networking Protocols
The Elite Gateway supports several industry-standard networking protocols required for voice communication. The following table describes these protocols.
| Networking Protocol |
Description |
| Internet Protocol (IP) |
IP is a messaging protocol that addresses and sends packets across the network. To enable IP protocol, the Elite Gateway must have a static IP address, subnet, and gateway assigned to it. |
| Voice over IP Protocol (VoIP) |
VoIP enables the Elite Gateway to transfer voice communications over an IP network. The Elite Gateway employs ITU-T H.323 protocol for setting up call with one another. |
| Trivial File Transfer Protocol (TFTP) |
TFTP allows you to transfer files over the network. The Elite Gateway implements a TFTP client allowing you to download new revision firmware from a TFTP server. The TFTP client requires a TFTP server in your network. |
| Real-Time Transport (RTP) |
RTP is a standard for transporting real-time data over IP network. The Elite Gateway uses RTP protocol to send digitized and compressed voice packets. | |
Front Panel
The front panel of the Elite Gateway contains a RJ-45 Ethernet port, one DB9 RS-232 interface port, a push button and 16 LED indicators. The following figure illustrates the front panel of the Elite Gateway.
 Figure 1. Elite Gateway Front Panel LED Indicators
The LED indicators on the front panel display the current status of the Elite Gateway as described in the following table:
| Indicator |
Color |
Activity |
Indication |
| PWR |
Green |
On |
Power is supplied to the gateway. |
| SYSTEM |
Green |
Blinking |
The system is running. (Heartbeat LED) |
LAN
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| Data is presented on LAN. |
| The gateway is connected to LAN at 100Mb/s. |
| The gateway is connected to LAN at 10Mb/s. |
| The gateway is connected to LAN. |
| Data collision is occurring on the network connection. | |
| Slot A |
| Slot B |
| Slot A/Slot B | |
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| A slide-in module is plugged into slot A. |
| A slide-in module is plugged into slot B. |
| The system is updating the firmware. | |
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| The line is idle. |
| The line is being used. |
| The line is ringing. | | |
Ports
The Elite Gateway is equipped with an Ethernet interface with 10/100 Mbps auto-negotiation capability. The Ethernet interface port is located on the front panel. In addition to the Ethernet interface port, there is a 9-pin RS-232 interface port on the front panel. Their functions are described below:
| Port |
Label |
Function |
| RJ45 |
LAN |
Connecting the Elite Gateway to a 10/100 Mbps Ethernet network |
| 9-pin RS-232 |
User Console |
Connecting the Elite Gateway to a VT-100 terminal or terminal emulator for configuring the Elite Gateway | |
Reset Button
There is a push button located behind a small hole next to the SYSTEM LED. This button allows you to reset the Elite Gateway or force the Elite Gateway to enter firmware upgrade mode.
To reset the gateway, push a small, stiff object into the hole until the SYSTEM LED stops blinking, then release the button.
Powering on the gateway while pressing down the button for 5 seconds forces the Elite Gateway to enter download mode
Rear Panel
The rear panel of the Elite Gateway has two slots allowing the installation of up to two Telephony Interface Modules (TIM) . Each module is equipped with 4 telephony interface ports. Depending on the type of the telephony interface module, the telephony interface ports may be connected to telephony devices, such as PBX, KTS, and telephone sets of central office. In addition to the TIM slots, there is an AC power receptacle and a power switch on the rear panel.
 Figure 2. Elite Gateway Rear Panel
This applies to:
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