Symptoms caused by the radiation of mobile phones are one of the most argued problems. Many scientists believe that the radiation from the mobile phones may cause the users to have different symptoms such as headache, earaches, blurring of vision and even causing cancer. Though, these problems are still under research. Mobile phone users are advice to reduce the usage on mobile phones if it is possible.

Mobile phone addiction is a big social problem. Psychiatrists believe that mobile phone addiction is becoming one of the biggest non-drug addictions in the 21st century. Along with the age drop of the mobile phone users and the ease of prepaid method provide by the system operators, most teenagers now own their own mobile phone and network service. Teenagers are engaged on their mobile phones all the time, no matter on phone calls, using SMS text messages, personalising the mobile phones with ringtones and pictures etc. Besides this, many people are running after the lastest mobile phones. New models of mobile phones are released almost everyday. In order to get up-to-date, people tend to change their mobile phones once in a while. These became habits among the mobile phone users causing them to spend unnecessary cost on mobile bills and costs.

Cyber bullying is also another issue among the disadvantages of mobile phones. Cyber bullying is a bullying act using offensive words and behavior via online chatting, emails or SMS text messages. It was showed that the psychological effects of cyber bullying are much severe that face-to-face bullying. This problem now is among teenagers especially the secondary students.

There are still many problems causing but the new technology. Mobile phones with camera functions are causing privacy problems. Saudi Arabia had banned camera phones through out the country while many countries are concern about this problem. This is because many people have misused the usage on the camera phones such as using it as a hidden camera to take photos which are private. The spreading on computer viruses is also a problem for this new technology. Just like computer viruses, these viruses will affect the normal usage on mobile phones making them to malfunction and causing destructions.

More Calls:

A disadvantage of being accessible from anywhere in the country is that people who try to sell you things and waste your time are also able to access you more easily.

You could also find that people try to contact you outside of business hours, leaving you with too many unwanted calls.

This can be countered by using some of the re-direction and answering services available to business mobile phone users, as well as by only giving the number out to important customers or key employees.

Potential Costs:

The biggest fear many employers have over using a mobile phone for business is that the costs will be so high as to damage their business. This is a potential danger, particularly when employees are using business mobiles, as there is a risk that some employees could misuse the phone raising bills massively.
However, very few employees deliberately misuse their phones, and a few personal phone calls are as much as most people will make.
The costs of running business mobiles can be very high, but there are also several ways to significantly lower the bills:
If employees are informed that the mobile should only be used when a landline phone is not available, then call numbers and costs should remain relatively low.
Use of a dual line package, or charging employees for non-business calls, can make sure bill charges are kept as low as possible.
Most importantly, choosing the right package, with the right prices and features can make a massive difference to the cost of your businesses' mobile phone calls.