Telephone siluetti 11 months 1 Cellphone siluetti 12 months 0 Smartphone siluetti 12 months 1 Cell siluetti 12 months 0 Smartphone siluetti 12 months 0 Tel siluetti about 1 year 10 Rotary Dial Telephone siluetti about 1 year 2 Megaphone siluetti about 1 year 1 Phone siluetti about 1 year 0 Iphone 4 siluetti about 1 year 0 Robot who calls on the phone siluetti about 1 year 1 Businessman Mobile Phone siluetti about 1 year 0