In fact, it is very simple to apply for a marriage certificate, and you don't have to call. As long as you go after 8: 00 a.m. on their working days from Monday to Friday, you can apply for a marriage certificate on the spot.
Specifically, both husband and wife need to bring their own ID cards and household registration books, and go together. Fill in the marriage registration form and take photos of the marriage certificate, and you can get the marriage certificate on the spot, one for each person.