Customer.pl additional module

[otresi]

Hi everyone

How can i add aditional required module on customer.pl when customer create new ticket bellow to and subject...
Example phone number or something like that..and if i can, how???

Thanks

Regards

[jojo]

use Dynamic Fields (no coding needed)

[otresi]

any example?
how add dynamic filed on customer.pm where customer create ticket?

[jojo]

it will be activated via sysconfig