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A mobile phone, cellular phone, cell phone, cellphone, handphone, or hand phone, sometimes shortened to simply mobile, cell or just phone, is a portable telephone that can make and receive calls over a radio frequency link while the user is moving within a telephone service area. The radio frequency link establishes a connection to the switching systems of a mobile phone operator, which provides access to the public switched telephone network (PSTN). Modern mobile telephone services use a cellular network architecture and, therefore, mobile telephones are called cellular telephones or cell phones in North America. In addition to telephony, digital mobile phones (2G) support a variety of other services, such as text messaging, MMS, email, Internet access, short-range wireless communications (infrared, Bluetooth), business applications, video games and digital photography. Mobile phones offering only those capabilities are known as feature phones; mobile phones which offer greatly advanced computing capabilities are referred to as smartphones.The development of metal-oxide-semiconductor (MOS) large-scale integration (LSI) technology, information theory and cellular networking led to the development of affordable mobile communications. The first handheld mobile phone was demonstrated by John F. Mitchell and Martin Cooper of Motorola in New York City in 1973, using a handset weighing c. 2 kilograms (4.4 lbs). In 1979, Nippon Telegraph and Telephone (NTT) launched the world's first cellular network in Japan. In 1983, the DynaTAC 8000x was the first commercially available handheld mobile phone. From 1983 to 2014, worldwide mobile phone subscriptions grew to over seven billion; enough to provide one for every person on Earth. In the first quarter of 2016, the top smartphone developers worldwide were Samsung, Apple and Huawei; smartphone sales represented 78 percent of total mobile phone sales. For feature phones (slang: "dumbphones") as of 2016, the top-selling brands were Samsung, Nokia and Alcatel.

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  1. S

    gas safe

    had my first contact with gas safes tech help line today what a breath of fresh air polite answered my question without refering me to any paperwork so different to the atitude we got from corgi
  2. W

    unhappy competition

    I feel that other plumbers are strugling a little in this ressesion as i had some competition last night come slash 4 tyres and front windscreen on my van i would not mind realy (well i do) but he is a hell lot busy than me in fact ive only had 2 small jobs in a month + and my prices have never...
  3. M

    pipe freezer

    hello,anyone any experience or advice on pipe freezing equipment please.
  4. M

    Willing to work for FREE!

    Will work for FREE! Hello, I am looking to get taken on by a gas engineer in London or surrounding areas. I am currently doing my ACS training and need to work with a qualified person to gain on the job experience and create my portfolio. I have good knowledge in plumbing. Plumber...
  5. W

    Field House Associates...... Cowboys???

    hi all around 3-4 wks ago i carried out a couple small jobs for a company named 'Field House Associates' based in Mawdesley, Liverpool (apparently). rang me up to repair a small leak in house my way (Durham City). they fitted new condensing boiler as they obviously dont wanna travel from...
  6. B

    Olci

    Hi guys im new to plumbing and this forums, well basically ive recently enrolled with OLCI plumbing doing my 6129. After reading what people say about OLCI tonight im starting to get really worried about what this company will do to me. Ive heard that some people didnt recieve their certificates...
  7. R

    pro's & con's of advertising?

    :cool: i everyone. just reading another thread and thought theres a good question to be asked. in your opinion, apart from the obvious - referalls and cards etc, what sort of results do you get from paid-for advertising, yell, classifieds etc, and do you consider them worth there while?. to...
  8. 3

    Extra Tools

    Hi there, just looking for some help with extra tools I might need. I have been supplied with the tools on the attachement but wondered if there is anything else I might need as a newbie. I will be working as a mate with 2 plumbing companies during my training and both said if I was...
  9. W

    Calling all manchester plumbers

    Hi my name is Darren and yes im another person to of jumped on the band wagon of plumbing training i am working towards the (6129), NVQ 2, and have a part P electronics course thrown in for good measure. As you all know i cant complete my NVQ 2 without doing on site work and am asking any...
  10. P

    How can I gain employment with no experience when all jobs require experience?! Help!

    I have recently qualified in domestic gas service and installation with ACS accreditation and am finding it impossible to get a job! All jobs require experience.. I need a job to get experience and so it goes on! I have wrote many speculative letters to companies offering to work on a...
  11. P

    Lpg course

    Hey all, i am going to be doing my LPG next month and wondering if anybody out there has it already and what the course involves etc>? Cheers:)
  12. S

    health and saftey exam questions

    hi - ive just started the 6129 Plumbing Technical Certificate Plumbing Level 2..soon we are going to have our first exam in health and saftey...ive done some practice questions at college...has anyone got any sample questions or where i can practice these types of questions at home rather then...
  13. V

    helping all you plumbers and plumbing businesses

    Hi, my name is vicki and on behalf of icomplete we would like to help you! We are offering members of uk plumbers the opportunity to try the brand new icomplete application for free. Now the application is designed for small businesses like yours and you can all hugely benefit from using our...
  14. T

    Van dilemma!

    Gentlemen, After several months in transition from aircraft mechanic, through a City & Guilds Tech Cert 2 in plumbing to my present position, I have been using my trusty C-max. Things have changed, though and now I need a van if I'm to have any credibility at all. I'm sick of loading and...
  15. T

    Plumbing Admin software

    Hello, I am conducting some market research to try and assess whether there is any demand for a piece of software that helps manage your paper work. For instance the software could potentially include.... A database to store customer details, Jobs, Employees etc. A method of...
  16. M

    Seeking volunteers to trial reminder service

    I'm looking for some volunteers to try out a new service I'm launching to give me some early feedback. All you need is a mobile phone. The service provides a way to follow up on quotes by sending out a reminder automatically by SMS. Please take a look at www.BookMeUp.co.uk for more details.
  17. W

    Northern School of Plastering - Plumbing Courses

    Northern School Of Plastering- Con This centre offers plumbing tiling and plastering courses but they are a con. They offer so called city and guilds courses but are not approved by city and guilds to do these courses. You can pay thousands of pounds for a course (I paid £4500 for the plumbing...
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