Dual SIM phones

Working professionals tend to carry two mobile phones for personal and business related purposes. The dual SIM phones makes it easy to carry both the SIM on the same device. Initially only one SIM was allowed to be active at a time which makes the other SIM unusable. Though it helped to save some space it didn't serve the purpose. Recently some of the phone companies have introduced dual SIM phone with options of both to be active at the same time. Currently major phone companies are not supporting this facility but we can expect them to do it sooner as the demand for Dual SIM increases.