Therefore, the mobile operator, the old list and the new list, no need to try to convince the customers mobile phone network as much as possible. That will require all marketing strategy to retain customers.
Thus, the mobile phone service old and new need to try to persuade customers to use the mobile phone network as much as possible. This will require all marketing strategies to retain customers.
So the old and new customers mobile telephone service providers need to try to convince customers to use a mobile phone network as much as possible. Which will require all the marketing strategy to retain customers.