1. contact telephone number: contact telephone number usually refers to a fixed telephone number, such as home telephone number or office telephone number, which is used for daily contact and answering telephone calls. When filling in the contact number, you need to enter the phone number and area code. If you fill it out abroad, you need to fill in the country/region code and city/region code first, and then fill in the telephone number.
2. Mobile phones: Mobile phones usually refer to mobile phone numbers, such as GSM, China Mobile and China Unicom. When filling in the mobile phone, just enter the phone number.
Contact telephone and mobile phone have different characteristics and functions in practical use. Where telephone numbers are required for filling in forms, contact numbers or mobile phones should be filled in according to specific requirements. If you are not sure about the requirements, you can ask the relevant personnel to ensure that they are filled in correctly.