None, routers do not use phone jacks.
Router
Jacks are for lifting or raising things. They can be screwed jacks or air jacks, or most commonly, hydraulic jacks.
like a modem but modern version between phone cable an computerAnswer:its not!... a router is an external device or hub separate to the computer for the above use and connections
jacks reaction to what?
Hungry Jacks is at Livingston , Bussleten
Sam Jacks died in 1975.
Al Jacks was born in 1935.
Harry Jacks died in 1994.
Ball Jacks happened in 1993.
William Jacks was born in 1841.
William Jacks died in 1907.
Digby Jacks was born in 1945.