Detailed and fairly easy process. Two interviews, one over the phone and the other in person. Typical interview questions and fairly conversational rather than formal back and fourth. Can't really prepare in a specific way.
Normal retail interview, they look for how well you can gauge potential sales and services through a brief conversation with customers. Friendly talk on background and look for knowledge of the company and their global reach and industry position.
Interview questions [1]
Question 1
Here is a list of products, here is a scenario. You have 10 mins to evaluate this and then pitch possible sales to interviewer.
I applied in-person. The process took 1 day. I interviewed at Vodafone (Náousa, Central Macedonia) in Mar 2017
Interview
They ask you in person about your communication skills and they want to know your background knowledge about technologies. Also, if you can handle lots of things at the same time. It's friendly but business environment.
Interview questions [1]
Question 1
How would you persuade a customer to upgrade to a better cellphone contract?