Despite the constant barrage of emails you receive on a daily basis, businesses still need telephones. The ability to provide instant contact with a human voice in a two-way manner that telephones offer is still unbeatable by other communication forms.
Mobility refers to any application developed for a mobile device that facilitates business outside of a typical office environment. By using the portable power found in modern smartphones, a lot of the work that just a few years ago could only be done on a PC can be done in the palm of your hand.
Some companies, typically larger ones such as IBM and State Farm, have moved a portion of their workforce off of the central work sites, either by having employees work from home or by placing them in co-working spaces, such as collaboration rooms