There is also a reason for abandoning a landline in favour of a mobile phone.
But at the end of the day, they keep the landline because cell phone reliability isn't good enough.
It can be connected to a landline or a wireless phone for Internet browsing.
Last year the number of users around the world surged past the billion mark - outstripping landlines for the first time.
More and more people are using mobile phones as their home phone, keeping their landlines strictly for broadband service.
This is a key point: wireless phones could never have replaced landlines on landline phones' own terms.
More of them have broadband connections and a much larger percentage have ditched their landlines for mobile phones.
He said people could not make calls to mobile phones and or from landlines to cell phones because all the messages were backed up.
Secondly, mobile phones, landlines , IP telephony all now can interconnect with one another, making the world a smaller place.
There are only 40,000 landlines and 70,000 mobile phones.