联网
| 网路功能 |
Fast Ethernet |
| 支持数据传输率 |
10Mbit/s |
技术细节
| 遵守工业标准 |
IEEE 802.3, IEEE 802.3u |
协议
| 支持网络协议 |
DHCP, PPPoE, PPTP, Telnet |
能量控制
| 接受频率 |
50/60 Hz |
| 输入电压 |
90 - 260 V |
DVG-4088S, VoIP, SIP, Fast Ethernet, 1 x LAN, 8 x FXS, 8 x FXO, 1 x WAN, DHCP, 4.1kg, Black
<b>16-Port VoIP Gateways</b>
The DVG-4088S VoIP gateways present an ideal Internet telephone solution for business use. These gateways convert voice traffic into data packets for transmission over the Internet, and vice versa. Equipped with both FXS and FXO types of phone ports, these gateways provides flexible and convenient connection to PSTN lines, PBXs and standard phones for voice and fax over any IP network. They combine the industry's latest Voice over the IP network technology with advanced communication features, and are fully compatible with SIP Internet phone services. Now, from a single device, corporate, small, or remote offices can access Internet telephony services, eliminate toll charges and route calls to and from the PSTN, Internet, or LAN.
<b>For Enterprise Use</b>
In a remote IP phone to local analog phone line application, a branch office can take in IP voice calls from a head office, then route them to local destinations equipped with only analog phones. The long distance calls are sent through the Internet without any phone charge, and the remote office pays only for the local analog phone time. The gateways connect analog callers to the IP network without involving operators or incurring toll charges from telephone companies.
<b>For Service Providers</b>
The DVG-4088S gateways can also be deployed by service providers to interface their VoIP infrastructure with a Public Switched T elephone Network (PSTN). For incoming calls from subscribers, these gateways accept local analog calls and place them on the IP network for sending out over the Internet. The gateways accept dial tone and ring current from the connected equipment, and facilitate the use of conventional phone sets and fax machines on a VoIP network. They allow analog phone callers to place calls, with a small charge, through the long-distance Internet trunk line.
<b>Combination of FXS and FXO Ports</b>
The DVG-4088S gateways are equipped with both FXS and FXO ports for flexible deployment. Up to 8 FXS ports connect analog phone sets to the Internet. Up to 8 FXO ports route Internet calls to local analog destinations.Guaranteed Voice Quality. The gateways deliver clear sound, voice and reliable fax calling through implementation of internationally recognized standards for voice and data networking. They incorporate Quality of Service (QoS) functions to ensure that voice received through the Internet is the same as or even surpasses that received on the ordinary phone.
<b>Convenient Call Features</b>
The gateways support extensive call features, allowing the service providers to offer these functions to their subscribers. Provided that the telephone sets at the end-users side support these functions, callers can take advantage of these convenient features. Configuration of individual phone connection is easy, using the multi-language Interactive Voice Response (IVR) or the web-based user's interface.
