SIM Card Vs Non-SIM Card Phones

Wireless communication has become an essential part of many people’s lives. Wireless handsets come in different types. There are those that do not use SIM cards such as the Code Division Multiple Access (CDMA). Then there is the Global System for Mobile Communication (GSM) and the Integrated Digital Enhanced Network (iDEN) that both use SIM cards.

Advantages of SIM card phones over non-SIM card phones:

·         Data Portability: A SIM card is portable in a way that you can remove it and place it in another phone. This can be handy, especially if your battery goes down and you cannot charge the phone. In addition to that, you can also transfer the data that is in your SIM card to your PC. To do this you will need to get a SIM Card Reader. Doing this will help you back up your contacts

·         Ability to change phones: Phones come in different types and designs these days and one may need to upgrade the technology. These phones offer you the ability to use a different or new phone with your old card. If you are using a CDMA phone, you will need to re-enter all your contacts manually, which is rather an outdated procedure and is time consuming.

·         Ability to have more than one phone number: With GSM or iDEN phones you have the ability to have more than one phone number in the same phone as some new phone types offer multiple SIM card support, unlike the CDMA which only holds the programmed numbers.

Advantages of non-SIM card phones over SIM card Phones-

·         Data Security: This is simply because transfer of data is harder. SIM cards can easily be removed from a phone and put into another phone to copy information. This cannot happen with the CDMA phones, as there is no removable storage device.

·         No SIM card damage: Just like any device, SIM cards can get damaged. You do not have to worry about your card getting damaged, which means losing all your data, including contacts. But you can always get a replacement from your service provider at a fee. You will also be charged an additional fee if you need to get a printout of your call log information to retrieve lost contacts.

While GSM is the most used worldwide, CDMA and iDEN still remain common in the United States. However, due to slow speeds, they are not as popular as GSM phones.

Prepaid SIM Cards Vs. Postpaid SIM Cards

What status the country is at is not a secret to many. The recession has made everybody wise spenders. Today, people have valued their needs more than their wants. Most have preferred eating at home instead of dining out, travelling inside the country than outside, all for the glory of saving money. One of the big portions of families’ expenditures is the phone bill. And with the current economic state we are in, it is now the best time to decide which is better, prepaid or postpaid?

When talking about prepaid or postpaid, we need refer to SIM cards. SIM cards are the small cards almost always found under the battery cases of most cellular phones. Originally, it was created as big as a credit card, however it became smaller as cellular phones started shrinking in size. Its name means subscriber identity module. These tiny cards operate under the global system for mobile communication (GSM) format. With the progression of technology, these cards are now sold either on prepaid or postpaid service. These two very popular terms are about SIM card load or in other countries, balance. So how are these two actually different?

A prepaid SIM card is bought to establish a quantity that acts as being a credit remainder aided by the provider. As talk period and supplementary services are being utilized, the company creates expenses against the credit total. If ever the credit drops toward zero, its assistance is instantly discontinued. The prepaid SIM card has to be reloaded with further credit to ensure that service is continued and restored. Countless prepaid SIM cards possess a period limit on how sustained the credit is intended for use. Reloading ahead of expiration frequently enables the balance in the preceding period to be included in combination with the new credit quantity. A few prepaid SIM card carriers permit clients infinite and free talk time within particular time periods, such as on weekends.

On the other hand, a postpaid SIM card allows the consumer to talk for so long as they enjoy. The phone calls are logged, then the consumer is due every month for their talk time and additional services utilized, like outgoing text communication and the acquisition of ring tones. It has always been a prerequisite for postpaid cellular phone SIM cards that a credit card exists on record with the service provider, as they're offering a service ahead of payment which could undoubtedly add to many hundreds of dollars if the consumer isn't careful.

The Disadvantages of Wi-Fi Technology

Wi-Fi technology is a relatively new phenomenon in many parts of the world. We all appreciate the benefits that come with this technology, especially for those in business, as they have increased productivity as well as increased efficiency. The benefits actually undermine why numerous service providers are getting into the fray and providing SIM cards with inbuilt Wi-Fi. However, it always prompts the question ‘is Wi-Fi technology all good’? What are the shortcomings that the network companies do not tell us about?

To begin with, using a Wi-Fi bandwidth that is at 2.4 GHz will not necessitate licensing, as long as it remains below the 100mW limit and the individual accepts to have interference. This interference may actually cause the device in use to cease to function.

In addition, there is no uniformity or consistency in the operational limitations or the spectrum assignment worldwide. This means that unless you are willing to stay at a particular place within Wi-Fi range, you may be frustrated from time to time, especially if you are travelling.

While WiFi calling will save on the cost of a service provider, you will have to contend with high power consumption. Users are always concerned about their battery life, as well as the heat produced by these devices, which makes it a case of borrowing Peter to pay Paul.

One of the strongest points for Wi-Fi is its high efficiency. However, bearing in mind that Wi-Fi connections operate under unlicensed 2.4GHz, other devices will more often than not crowd the spectrum. These include Bluetooth, cordless phones, microwave ovens and many other devices. This will definitely impact negatively on the performance of this technology, thereby degrading it.

One of the major disadvantages of Wi-Fi technology is the limitation of its range. Typical Wi-Fi routers have ranges of 90 meters outdoors and 45 meters indoors. In addition, there are variations in WI-FI ranges, just like the frequencies of radios. This places you under considerable limitation as to the areas in which you could operate.

Another major concern about Wi-Fi connections is the security standards. Of course research and technological advancement means that there may be improvements in the protection of confidential personal information. However, before then, you have to deal with the insecurity, as there is no encryption or authentication of data. 

These disadvantages are unlikely to deter you from going for the all good Wi-Fi technology. However, it is important that you consider the implications before taking the big leap.