Skip to main content


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. May be these symbols confuse a non-techie person. Before explaining this I think it is better give a short description on 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 "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 3G network.…

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 four-slot device the speed reduced to 236.8kbps and 118.4kbps in 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 give 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 Continues A…