Ticket sales experience and has many customers in the communications category has as a group better, and also teach specific troubleshooting page, there is a problem in the time matters and can be applied in real life.
Ticket sales experience and customer communications across multiple types have been known to work as well. And also teaches problem solving at issue in question. And can be adapted to work in real life.
Experience, ticket sales and customer communication in various types known functional group. And also teach problem solving when there is a problem in many matters. And can be adjusted in real life work.