The Main Difference is that in Technical Support You Need
To Have a Very Good Product Knowledge to Troubleshoot the
customer's problem Whereas in Customer Service It Is All
About How Courteous, Empathetic, Professional &
Knowledgeable You Are and also on how good you can be in
building rapport...In Other Words You Will Try To SAY NO-
In the Sweetest Way Possible on most of your CS Calls
whereas in Tech You End Up Providing a Issue Resolution on
most of the calls or atleast an alternate solution and it
does not depend much on how courteous & empathetic you were
on the call as long as you provide a solution...
in technical support ones need to give end to end solution
about technological field i.e about net problems ,system
problems or etc whatever is relating to( hardware) technical
field,but in customer service ones need to provide the
knowledge about relating software or company products.