گیت وی FXO پلنت ۲۴ پورت 24-Port FXO H.323 / SIP VoIP Gateway ,

Network Features
• Network Address Translation (NAT)
　NAT allows multiple PCs to connect to an Internet Service Provider (ISP) using a
　single Internet access account
• Point-to-Point Protocol over Ethernet (PPPoE) Client Support:
　If you are a DSL user, the router has a built-in PPPoE client for establishing a DSL
　link connection with the ISP. There is no need to install a further PPPoE driver on
　your computers
• Smart QoS
　The smart QoS provides stable voice quality while users access to Internet from 
　private LAN at the same time. This device would start suppressing throughput
　automatically when VoIP call proceed and keep full speed access when there is no
　VoIP traffic
• DDNS(Dynamic Domain Name Server)
　DDNS is a service that maps Internet domain names to IP addresses. It allows you
　to provide Internet users with a domain name (instead of an IP Address) to access
　your Virtual Servers
• Virtual Server
　Remote Users can access services such as the Web or FTP at your local site via
　public IP addresses and can be automatically redirected to local servers
　configured with private IP addresses

VoIP Features
• H.323 / SIP dual mode communication
• SIP 2.0 (RFC3261), H.323v4 compliant
• Peer-to-Peer / H.323 GK / SIP proxy calls
• PSTN lifeline for emergency calls (VIP-2480 model)
• Voice codec support: G.711(A-law / u-law), G.729 AB, G.723 (6.3 Kbps / 5.3Kbps)
• Voice processing: Voice Active Detection, DTMF detection, G.165/G.168 compliant
　echo canceller, silence detection, FAX (T.38 / T.30) Mode Option
• Built in adaptive buffer that helps to smooth out the variations in delay (jitter)
　for voice traffic
• Voice channels status display: This function display each port status likes as on-
　hook, off-hook, calling number called number, talk duration, codec