Telephone numbers

A lot of time people aren’t putting in the correct country code. The drop down list has is not easy to search their country as you have o go through the whole list, you can not just type the country code. Then they also leave the 0 in front of their telephone numbers. For example when you select united kingdom it automatically shows with the 0 at the beginning so people complete it this way This then creates the problem to search for the clients via phone numbers and also copying there numbers from the system