It supports up to 2 SIP account profiles and a variety of VoIP features, such as Adaptive Jitter Buffer, 3-way conferencing and Voice Activity Detection (VAD).
| GXW4008 Features | |
| General | |
| Availability: | currently available |
| Street price: |
$187 |
| LAN / WAN Connectivity | |
| WAN ports: |
1 |
| WAN port(s) type: | 10/100 Base-TX (RJ-45) |
| WAN port auto cross-over: |
 |
| LAN ports: | 1 |
| LAN ports type: | 10/100 Base-TX (RJ-45) |
| LAN ports auto cross-over: |
|
| RJ-11 FXS VoIP phone ports: | 8 |
| Serial port: |
RS-232 port for system configuration |
| Router | |
| NAT routing: |
|
| Multihomed: |
|
| DHCP server: |
|
| DHCP client: |
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| ToS / DiffServ: |
|
| MAC Address clone: |
|
| VoIP | |
| VoIP Protocols: |
SIP v2 (RFC 3261) RTP / RTCP (RFCs 1889/1890) T.38 (Fax over IP) |
| VoIP Audio Codecs: |
G.711 (PCM) G.723.1 G.726 G.728 G.729 (a/b) G.729e iLBC (Internet Low Bitrate Codec) |
| VoIP Voice Features: |
Echo Cancellation (G.165/G.168) Adaptive Jitter Buffer 3-way conferencing Call waiting Call transfer Voice Activity Detection (VAD) Comfort Noise Generator (CNG) |
| Device Management | |
| Default IP address: | 192.168.2.1 |
| Default admin username: | n/a |
| Default admin password: | admin |
| Administration: |
Web-based (LAN) Remote configuration (WAN) Telnet / CLI TFTP (RFC 1350) |
| Firmware upgradeable: |
|
| Configuration backup/restore: |
|
| Event log: |
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| Misc hardware info | |
| NTP client: |
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| Links | |
| Product page: | http://www.grandstream.com/products/gate... |
| Datasheet: | http://www.speedguide.net/images/hardwar... |
| Manual: | www.speedguide.net/images/hardware/grand... |
| Quick Install Guide: | http://www.speedguide.net/images/hardwar... |
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