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Showing posts from April, 2012

Toggling of H and 3G Symbols Near the Signal strength in Mobile Phone

If you are using GSM service you may note the toggling of 3G and H symbols in your mobile phone near the mobile signal strength. When the mobile phone is idle (It means no data transfer ), it turns to 3G but if we start Internet activities it will turn back to "H" from 3G. Maybe these symbols confuse a non-techie person. Before explaining this I think it is better to give a short description of data bandwidth technologies we are using right now. 2.5G is known by the term GPRS in data service and 2.75G is termed as EDGE. If you see the "E" symbol while using data service, it is EDGE network your mobile phone is connected. In the same way, "UMTS" technology is commonly termed as 3G and HSDPA is termed as H. However, there is a difference in mentioning 3G and "H". 3G carries both voice and data but "H" is purely data service.

Why showing H in 3G network
So if your handset is HSDPA enabled, it can transfer data up to 7.2Mbps speed in a 3G …

Compare Speed Limits of Mobile Data Services -HSDPA, 3G,GPRS, EDGE

The major mobile data transfer technologies using are GPRS, EDGE, UMTS, and HSDPA. This article is about comparing the speed limits of these mobile data service technologies. GPRS is the abbreviation of "General Packet Radio Service" and its maximum data transfer speed limit is 115 kbps. When it comes to EDGE the theoretical maximum speed limit is 473.6kbps in eight-time slot device. In a four-slot device, the speed reduced to 236.8kbps and 118.4kbps in the two-slot device. EDGE is the abbreviation of Enhanced Data rates for GSM Evolution. UMTS(Universal Mobile Telecommunications System) has the theoretical maximum speed limit of 384 kbps for R99 handsets, and 7.2 Mbps for HSDPA handsets. H denotes HSDPA (High-Speed Downlink Packet Access) and its theoretical maximum download speed limit is 42 Mbps. 
Mobile Data Bandwidth technologies ---------------------------------- 2.5G ---------> GPRS 2.75G ---------> EDGE 3G ---------> UMTS 3.5G ---…

Continues Dial-up Connection Prompt to Connect to a Network

For the last few days, I have been noticing the continues appearance of dial-up connection requests made by my computer though there is no modem connected to my computer. At first I did not pay much attention to this but at last, it started irritating my works. It is a dial-up connection window which asks me to select the service I want to connect my computer. It has a list of pre-configured dial-up connections (these connections were made by me only) and gives options either to connect to any network or cancel it. Even though I cancel the connection request it comes back after a few minutes. SO I decided to find out the reason for this continues connection requests. The connection request is just like the image provided below.

Reason for Continues Dial-UP Connection Prompts
In Internet Properties, the default option selected was "Dial whenever a network connection is not present". Because of this default option, I am getting continues Dial-up Connection requests.

Stop Contin…

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Alex George
Alex George has Engineering graduation in Computer Science and an MBA in Finance. He had been working as a senior Network Engineer for ten years. His specialization is in Cisco products. Traveling is one of his hobbies and visited various places as part of his onsite work. He visited different places as part of his onsite work like New York, Dubai, London, etc. Right now Alex is a director of one of the leading career development firms in India, which trains students for UPSC, SSC, and PSC examinations. He guides a lot of students to get selection for various prestigious institutions like CBI, Income Tax Department, etc. Alex George is a stock market investor and a very active intraday trader. Engineering Background: He has a B.Tech in Computer Science and Engineering and passed different network and security courses like CCNA, CCNP (Security), CEH, and various Microsoft certifications. Finance Background: Alex has an MBA in Finance. He is an active intraday trader and a Share Market Investor. Webmaster Skills: Alex is a blogger since 2004. He has a working knowledge of HTML, CSS, PHP, and JavaScrip.


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