| HT503 Features |
| General
|
| Availability: |
currently available
|
| Street price: |
$50
|
| 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: |
1 |
| RJ-11 FXO VoIP PSTN wall jack port: |
1 |
| Router
|
| NAT routing: |
|
| Multihomed: |
|
| DHCP server: |
|
| DHCP client: |
|
| QoS: |
|
| ToS / DiffServ: |
|
| Routing Protocols: |
VLAN tagging (802.1q)
|
| 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)
G.729e
iLBC (Internet Low Bitrate Codec)
|
| VoIP Voice Features: |
Echo Cancellation (G.165/G.168)
Adaptive Jitter Buffer
3-way conferencing
Caller ID
Call waiting
Call transfer
Call forward
Do Not Disturb (DND)
Voice Activity Detection (VAD)
Voicemail
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)
Telnet / CLI
TFTP (RFC 1350)
|
| Firmware upgradeable: |
|
| Configuration backup/restore: |
|
| Event log: |
|
| Misc hardware info
|
| NTP client: |
|
| Links
|
| Product page: |
http://www.grandstream.com/ |
| Datasheet: |
http://www.speedguide.net/images/hardwar... |
| Manual: |
http://www.speedguide.net/images/hardwar... |
