Telefon internetowy:

• IP Telephone for broadband Internet or IP networks
• SIP protocol support
• Connects to Internet through LAN or directly to DSL or cable modem
• Second connection to PC
• IP address assignment using PPPoE, DHCP or static configuration
• Voice activity detection/comfort noise generation
• Adaptive jitter buffer
• Acoustic echo cancellation
• DTMF tone generation
• Easy-to-use setup/programming interface
• Remote software update support
• 2 x 16 LCD display
• Adjustable speaker/ringer volume control
•  * Voice quality may be affected if large file transfer occurs at the same time.

IP Telephone for home or small office
The DPH-120S is a versatile IP Telephone that lets you make phone calls using the Internet or any IP network. Voice is packed into IP format packets for transmission, so phone calls bypass the PSTN normally used for voice communication. This IP Telephone significantly reduces your phone charge by using the services provided by Internet Service Providers (ISP). Its biggest benefit is the elimination of the high cost for normal long-distance and international phone calls. Designed as a full-feature speakerphone set that operates like other ordinary telephones, this IP Telephone can be readily installed in your home or office.

With this Internet telephone, expensive long-distance and international phone calls over standard landline telephones can be avoided altogether. You make and receive voice calls over the same line that you use to connect to the Internet, and pay the same Internet connection charge, plus a service charge to your Service Provider.

The DPH-120S operates just like any ordinary telephone. All destination numbers must be registered with your Internet Telephony Service Provider or Proxy Server. You dial your server's code, then your destination number; the Internet Telephony Service Provider or Proxy Server will map your number with the destination.

The DPH-120S has a built-in Ethernet interface to connect to a DSL or cable modem, or a router supporting DSL or cable modem connection. Once connected, you are logged on to the Internet and are ready to make and receive calls anytime.

The DPH-120S can also be used with LANs with Ethernet and IP protocol support. Voice is transmitted on the same line as data, and telephone charges are eliminated altogether.

The DPH-120S incorporates QoS functions to ensure that the quality of voice data received on the IP Telephone is virtually the same as that received on a standard landline telephone. To allow for a smooth voice reception, voice packets get a higher priority over data packets on the network packet stream. Other capabilities include acoustic echo cancellation, voice activity detection/comfort noise generation (when there is a prolonged silence), and adaptive jitter buffer.

Voice and data travels at the same time on the same network line. The DPH-120S provides an extra RJ-45 connector that connects to your PC's Ethernet interface. This allows you to talk on the IP Telephone while browsing web sites, sending email, transferring files and doing other network tasks*.

The DPH-120S is a speakerphone. It has a large LCD to display dial-out and call-in numbers. It also has redial, mute, transfer, voice mail, 3-way conference, call waiting, call forwarding and hold functions, plus a menu key and an address book.

Bramka Internetowa:

2-port VoIP Station Gateway
The D-Link DVG-1402S VoIP Station Gateway allows 2 ordinary telephone sets to plug in to become IP telephones. This Gateway lets you make phone calls using the Internet or any IP network. Voice is packed into IP format packets for transmission, so phone calls bypass the PSTN normally used for voice communication. Its biggest benefit is a reduction of the high cost associated with normal long-distance and international phone calls. The DVG-1402S combines IP Telephony functions with IP remote routing to provide you with easy broadband access and voice/data convergence on a single network. In addition, 4 Ethernet switch ports are provided for ready server/workstation connection.

The Gateway receives voice and data services over a single network connection. Expensive long-distance and international phone calls over the ordinary telephone service can be avoided altogether. You make and receive voice calls over the same line that you use to connect to the Internet, and pay the same Internet connection charge, plus a service charge to your Service Provider.

Through a 10/100BASE-TX Ethernet port, the DVG-1402S connects directly to your company network or the broadband line (DSL or cable modem), without going through any PBX. It provides 2 FXS (Foreign Exchange Station) ports (2 RJ-11 phone sockets) for connection to 2 telephone sets or fax machines.

You simply plug in any ordinary telephone sets to the phone sockets on the Gateway, then operate your telephone as you normally do. All destination numbers must be registered with your Internet Telephony Service Provider or Proxy Server. You dial your server's code, then your destination number; the Internet Telephony Service Provider or Proxy Server will map your number with the destination.

The Gateway incorporates Quality of Service (QoS) functions to ensure that voice received is almost the same as that received on the ordinary phone. To allow for a smooth voice reception, voice packets get a higher priority over data packets on the network packet stream. Other capabilities include echo cancellation, silence suppression/comfort noise generation (when there is a prolonged silence), adaptive jitter buffer and lost voice packet recovery.

The Gateway provides built-in router function to permit sharing of the broadband line for Internet access in your office. Built-in NAT and DHCP server functions automatically create an IP address and assign it for each user, simplifying everyone's logon operation. NAT also provide firewall protection for your network, blocking and redirecting certain ports to limit the services that outside users can access your network.

For LAN connection, the Gateway incorporates 4 10/100Mbps Ethernet ports, providing ready connection for workstations and servers. This saves you the cost and trouble of installing a separate Ethernet switch.

• 2 analog loop-start FXS interfaces for connection to 2 phones/fax machines
• SIP Protocol support
• 10/100Mbps WAN port for Internet broadband connection
• 4 10/100Mbps LAN ports for connection to servers/workstations
• PPPoE for dial-up broadband connection
• Caller ID function
• Comfort Noise Generation (CNG), Voice Activity Detection (VAD), echo cancellation (G.168), Adaptive jitter buffer for a smooth voice reception
• Silence suppression to reduce bandwidth consumption
• Lost packet recovery to improve voice quality
• Priority Queues QoS (Quality of Service) to guarantee voice quality
• IP address assignment using DHCP or static configuration
• IP Routing supporting RIP1, RIP2 and Static Routing
• IP sharing for multiple users Internet access via a single IP address
• Configuration download using HTTPS and SSL/TLS client certificate encryption/authentication