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147 posts

Master Geek
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Topic # 55753 8-Jan-2010 21:57
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What sort of tracking methods does vodafone have to track the number of cellphones using a particular tower? Can you actually see how many cellphones are connected to it when they are not making/receiving any calls or texts? Could you actually see how many cellphones are connected to your network all over new zealand and is it as easy as clicking a few buttons to see this info?
 And does vodafone's gsm 2g have 124 carrier frequencies and use time division multiplexing which would mean each tower can handle 992 simultaneous voice calls? Does the call limit increase with 3g?

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Ultimate Geek


  Reply # 288945 11-Jan-2010 13:11
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do you really expect them to tell you all this information even if they could?

also you have forgotten that the key to GSM is frequency reuse as well as time division in 2G and Code division in 3G.

for a generalised breakdown a 2G site has at least 48 channels of those about 42 could carry voice calls and in most cases 3 or 4 voice calls so you are looking in the realm of 120 calls per site.

3G is a whole other beast but gives you about double the capacity of a 2G from memory

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  Reply # 288954 11-Jan-2010 13:39
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The Vodafone NZ 2G network also has dedicated GPRS channels per cell


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