why mobiles has 10 digit numbers?
Answers were Sorted based on User's Feedback
Answer / sivaraj
In india having 125 crore population.we use 6 digit and 7 digit numbers means we cannot use more than 10 laksh number.if we taken 10 digit number 1000 crore above numbers available.so that only the TRAI has been allotted 10 digit number(10*10)10 times
Is This Answer Correct ? | 31 Yes | 1 No |
Answer / anu
The number of digits in a mobile phone number decide the maximum mobile phones we can have without dialing the country code, ie. 91 (for India). To understand this we need to go back to school.Remember permutations & combinations.
Suppose I had a pair of jeans (J1-2) and four tee-shirts (T1-4). The possible combinations are: J1T1, J1T2, J1T3, J1T4, J2T1, J2T2, J2T3, and J2T4, ie. 8 combinations {2 (no. of jeans) X 4 (no. of tee-shirts)}.
The same logic is used when computing the digits in a mobile phone number. Now suppose if we had a 6-digit cell number, the maximum number of unique cell numbers possible would have been (10 x 10 x 10 x 10 x 10 x 10), ie, a maximum of 1,000,000 subscribers. We have already crossed the 100-million mark in India. So obviously we could not have had a 6-digit cell phone number. Not even a 7-digit because that would've resulted in a capacity of 10 million, not even 8-digit (100 million subscribers), and not even a 9-digit (ie. 1000 million or 100 crore, since our population is close to 125 crore and growing).
A 10-digit cell number offers us a capacity to have 10 billion (1000 crore) subscribers, which is far more than what our country can even achieve. We are v.v.v.unlikely to have a population or a subscriber base of 1000 crore but there is a remote likelihood of us having 100 crore subscribers. Hence, a 10-digit mobile number.
Is This Answer Correct ? | 14 Yes | 0 No |
how android application testing will be done, i am new to this testing, how we have to prepare and exicute testcases, please explaine me with some real time examples and described test cases.
How to know latest design of android and IOS app ? is there any site ?
what is regression testing?
what is intelligence testing
what is incremental testing?
What is actual mobile testing and in realtime how this testing happens?
how you setup test bed for conformance testing
Explain the selection criteria for test automation tools for mobile testing.
Can anyone suggest me learning Mobile Application Testing course is good or not? Which tool is best? suggest me good institute in Hyderabad.
How do you test mobile handsets ?
How to know, which are the bands (850,900,1800,1900) a mobile device supports?
Hi guys Do any one known about the institute/compnay which offers training in Mobile handset testing or any related books (indian Edition) available in market to gain knowledge about this subject . Thanks mak_343, mak98202@yahoo.co.in