Its true that I have never use this type of super phone. there is no word to explain the quality of this phone.I have use this phone more than 3 year and this phone work so good all the time. I bought this phone in 2005 and I have use this till 2008 this phone was great.never face any problem with this phone.good battery backup. I have throw this phone more than 2 time but after that just assemble and its work like before.