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Voip Internet Accelerator Intelligent Packet Priority Engine

by D-Link

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  • The D-Link DI-102, Express EtherNetwork Broadband Internet/VoIP Accelerator and Intelligent Packet P
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Technical Details

  • Brand Name: D-Link
  • Model: DI-102
  • Connectivity Technology: Wired

Product Details

  • Product Dimensions: 9 x 3 x 6 inches ; 1 pounds
  • Shipping Weight: 1.1 pounds
  • Shipping: This item is also available for shipping to select countries outside the U.S.
  • ASIN: B0009VU7GC
  • Item model number: DI-102
  • Average Customer Review: 3.2 out of 5 stars  See all reviews (9 customer reviews)
  • Date first available at Amazon.com: July 7, 2004

Product Description

pThe DI-102 is an intelligent packet prioritizing engine that detects bandwidth-sensitive packets and gives them precedence over other data packets. For applications that require real-time performance, the DI-102 is the ideal solution./p

Customer Questions & Answers

Customer Reviews

3.2 out of 5 stars
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Most Helpful Customer Reviews

7 of 7 people found the following review helpful By D. on February 9, 2006
Verified Purchase
My work requires periodic sessions of massive downloads and when it's working, this device makes good use of my broadband connection. My connection averages about 13 MPS, and the download sessions generally run at 1.5 to 2 MPS. That might not seem like much, but without this unit, the download sessions run at less than half that speed. No one on the network has noticed any erosion in performance during download sessions, so I'd say it was a success in that regard.

The problem is that that whenever there's a hiccup in the connection (brownout, router or switch reset, unknown gremlins) the unit does not reset itself, as does the router, the switch and all my other network equipment. It must be manually disconnected, the broadband feed restablished in the router, then manually reconnected. This is not anything that the DLink suport staff seem to be aware of. Nor is it particularly intuitive (or logical for that matter).

If you can live with this and need focused broadband, place the unit in an easily accessible place and go for it.
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6 of 7 people found the following review helpful By D. Lloyd on August 15, 2006
When I initially came across the D-Link DI-102 (and the Hawking HBB1) I must admit I was skeptical of these "Broadband Internet Accelerators". After a little research, I decided on the DI-102 (based on my previous good experience with D-Link products). Both devices use the same StreamEngine technology from Ubicom.

We switched our home phone over to VOIP a few months ago, and although our ISP has infrastructure which is well optimized for VOIP, the call quality could be patchy when either of the Windows XP PCs in the house was using the shared DSL connection. However, when my wife's used her Apple Mac to FTP files, the VOIP connection was simply unusable. Unlike Windows XP, OS X 10.4 does not support Quality of Service (QoS), so it severely disrupts the VOIP packets.

Once I received the DI-102, I turned off all of my other equipment, plugged in the DI-102 between the DSL modem and telephone VOIP adapter, turned everything back on, that's it....

The device is very easy to install, and once installed it automatically goes to work. Basically it has two Ethernet connectors and a power connector. The built in browser based configuration is also very simple, providing status information for the device and four configuration options (for data rate, connection type, and static I/P information). Automatic data rate detection is already set by default.

We have noticed a substantial improvement in our VOIP call quality (and now even the Apple Mac can't disrupt our calls).

By the way, connecting this device (and any other networking/VOIP devices you own) to an uninterruptible power supply is essential for protection from "power nasties" such as surges, brownouts, etc.).
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5 of 6 people found the following review helpful A Kid's Review on April 2, 2006
Ha ha ha. I'm a kid. LOL!

Listen,

I bought this device to use with my asterisk server and it appears to do exactly what it should: give higher priority to VoIP (read: SIP and IAX2) traffic and allocate traffic as bandwidth needs change. I hooked up the device, changed my on-hold music to "Harvard Sentences", which are recognized by the ITU as a good method for determining telephone audio quality.

I immediately noticed a difference for the better, After baselining the quality level with full bandwidth, I tried downloading a few demos from Microsoft, and again, it seemed to work marvelously- no discernable packetloss.

This device won't help in all situations- I have two VoIP accounts, one has ping times around 180ms, and another with a ping time around 75ms. The 75ms VoIP had better call quality in virtually all regards, but the 180ms account still showed a few quality issues, that I've always had.

I noticed in multiple forums that people are having trouble using these types of devices on Comcast. This may be a cable issue, and because your sharing your connection, QoS probably needs to be setup on the head-end. My experience (with DSL) is 180-degrees of what the previous reviewer said.

I'm impressed. Compared to some of the more complex packet prioritization/QoS devices out there, this is the easiest to use out-of-the-box. It's truly PnP. It lacks in some aspects- virtually no end user configuration required, but when you stack it against other $1,000 QoS devices, It gets two thumbs up (way up.) It beats getting a dedicated DSL line for asterisk!

Long story short, if your getting a reasonable pingtime, this will enable you to still use a majority of your bandwidth for your browsing, without having voice quality issues.
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3 of 3 people found the following review helpful By Sean M. Derringer on March 15, 2007
This device does exactly what it says it will do and with zero configuration. I just plugged it in between my router and cable modem and it went to work prioritizing my outbound traffic. It has been doing this quietly for several months without complaint.

It is important to understand what this device can and can't do. It can't do anything to improve a bad connection from your ISP nor can it do anything about inbound traffic. What it does is give priority to outbound VOIP traffic during periods of heavy uploading (e.g. P2P applications). I no longer have to shut down applications that upload a lot of traffic when I am on the phone nor do I have to mess around with QOS settings in aftermarket firmware on my router. This product fixed my problems 100%.
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