D-Link DPH-540

D-Link introduced a Wi-Fi phone, designed in the shell that combines the ability to connect to a wireless network and to use the benefits of IP-telephony in one portable device. Thanks to this Wi-Fi VoIP-phone home and business users get a significant reduction in expenditures for local and long distance calls comparing to standard phone service.

All that is necessary to operate DPH-540 is: wireless 802.11g or 802.11b network with high speed Internet access and a valid VoIP-account. The device is fully autonomous and does not require a computer. Phone can be used at home, office, airport, internet cafe, university campuses or in other places where you have a wireless connection. Increase in the number of wireless hot spots with inexpensive or free high-speed Internet extends the use of VoIP-telephony services.
DPH-540 Wi-Fi-phone has a nice modern design; the body is made in silver and black colors, jacks for connecting the charger and headset are covered with rubber plugs. A bright color LCD display, depending on the situation, displays information such as call history, address book entries, and caller ID (caller ID). Supports redial, mute and hold features. You can change the ringtones, wallpapers, and update "firmware" via a wireless connection.
D-Link DPH-540 works via Session Initiation Protocol). Safety of its connection to the wireless networks is provided with support of WEP, WPA, and WPA2 - the phone works as with secured networks as well as with the "open" networks. Due to such features as echo cancellation, packet delay compensation and recovery of lost packets, voice quality of the device is comparable to traditional telephony. In addition to telephone functions, DPH-540 allows you to send and receive e-mails.
Standard set includes: the actual phone, CD-ROM with additional software, brief instructions, lithium-ion battery, USB-cable and a charger.

Providers in database: 6433

Echo cancellation module VPMADT032

VPMADT032 echo cancellation module is meant to be used with the Digium IP telephony boards; it provides echo cancellation for configurable long "tail" of up to 128 ms (1024 samples) simultaneously for all ports of the board. All IP-PBX Asterisk servers, connected to the telephone network (PSTN) have one common problem, which is "hybrid echo" - echo obtained due to the difference in the load-wire and four-wire telephone circuits. Echo appears as a distorted reflection and a detainee of the caller's voice, who is subscribed to IP-PBX Asterisk while talking to PSTN subscribers.

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