This gateway delivers clear voice and reliable phone/fax communication through implementation of internationally recognized standards for voice and data networking. It incorporates 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.
The DVG-5004S support extensive call features, allowing the service providers to offer these functions to their subscribers. It adopts either the G.711, G.726, G.729A or G.723.1 voice compression format to save network bandwidth while providing real-time, toll quality voice transmission and reception.
| DVG-5004S Features | |
| General | |
| Availability: | currently available |
| LAN / WAN Connectivity | |
| WAN ports: |
1 |
| WAN port(s) type: | 10/100 Base-TX (RJ-45) |
| WAN port auto cross-over: |
 |
| LAN ports: | 4 |
| LAN ports type: | 10/100 Base-TX (RJ-45) |
| LAN ports auto cross-over: |
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| RJ-11 FXS VoIP phone ports: | 4 |
| Router | |
| NAT routing: |
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| Multihomed: |
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| DMZ: |
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| Port forwarding: |
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| Port triggering: |
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| DHCP server: |
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| DHCP client: |
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| Dynamic DNS client: |
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| QoS: |
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| ToS / DiffServ: |
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| UPnP: |
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| MAC Address clone: |
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| Routing Protocols: |
RIP v1 (static routing, RFC 1058) RIP v2 (dynamic routing, RFC1389) |
| VoIP | |
| VoIP Protocols: |
SIP v2 (RFC 3261) RTP / RTCP (RFCs 1889/1890) T.38 (Fax over IP) STUN (RFC 3489) |
| VoIP Audio Codecs: |
G.711 (PCM) G.723.1 G.726 G.729 (a/b) |
| VoIP Voice Features: |
Echo Cancellation (G.165/G.168) Adaptive Jitter Buffer 3-way conferencing Caller ID Call waiting Call transfer Call forward Speed Dialing |
| Firewall | |
| DoS / DDoS protection: |
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| Filtering: | Domain/URL blocking, IP Address filtering, MAC Address filtering |
| Device Management | |
| Default IP address: | http://192.168.8.254 |
| Default admin username: | (blank) |
| Default admin password: | (blank) |
| Administration: |
Web-based (LAN) Remote configuration (WAN) Telnet / CLI |
| Firmware upgradeable: |
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| Configuration backup/restore: |
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| Event log: |
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| Diagnostic functions: |
ping |
| Misc hardware info | |
| NTP client: |
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| Links | |
| Product page: | http://dlink.com/ |
| Manual: | http://ftp.dlink.ru/pub/VoIP/DVG-5004S/D... |
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