Practical Second Connection With Problems

Practical Second Connection With Problems - Dual SIM smartphones allow parallel operation of two mobile lines. Travelers and professionals who both official and private use her cell phone, can dispense as a second phone. However, the technology has its pitfalls.

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According to a recent survey of the IT Association BITKOM, every tenth Smartphone user wishes that the next model with dual SIM technology should be equipped. Thus, he can use two SIM cards and thus two connections in a single device.

Second card slot replaces the service mobile

A dual-SIM phone has two slots for SIM cards and partly double laid out reception and transmission units in contrast to regular mobile phones. This can be useful especially for people with service mobile. "Dual-SIM professionals can combine with easily the private and professional Smartphone", says Timm Hoffmann of the BITKOM. Instead of two mobile phones you must carry only one with himself and still can be reached at two numbers of colleagues, family and friends.

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And there is a third group of mobile phone users who can benefit from a dual-SIM device: the collective combined. In many countries, where, for example, the mobile coverage has gaps, phones with two SIM card slots are common for a long time. So, you can combine different provider for telephony and Internet services. The manufacturer therefore offer many models with this technique in these markets for some time and also increasingly serve the German market.

Look closely before you buy

But for this reason are the most dual-SIM devices in one dough marker segment or at best located middle-class. The selection corresponds to the demand in developing and emerging markets. Top models of from well-known manufacturers such as Samsung, Sony and HTC have only a slot, even no dual SIM device, Apple offers. Who do without the latest hardware, features a large selection of devices. Buyer should study but the data sheets of the devices - protection against unpleasant surprises.

Because not every dual-SIM phone offers all functions for both ports. Many devices have only a transmitter and receiver unit. These so-called "stand-by"models, both ports are listening. Used one of the other switches off.

"Active models" have, however, two transmitting and receiving units and can operate both connections simultaneously. However, here too, there are differences. Some older device provides only a map of Internet access. And even though there are more and more: still not every dual-SIM device supports already LTE.

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Caution is advised even for devices purchased through the network from abroad. In the Asian region, dual-SIM devices are already more widely used and quite convenient to have. You are but not often intended for the German market.

Whatsapp unsuitable

Dual SIM smartphones are available both Android and Windows phone operating system. On both platforms, you can very well separated the respective connections. Windows phone 8.1 as can associate contacts with the swipe of a finger to the respective port, different ring tones for the different numbers are no problem.

But no matter if Android or Windows phone: Apps that identify the user by its telephone number, are usually not dual-SIM compatible.

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