You can create any number of phone numbers in orchidmedia for a contact using the Phone Details page. the page displays as follows:-

Phone Details Page
1. Previous and Next Page - Use the Previous and Next Page buttons to move between the Personal Details, Address Details, Phone Details, and Internet Details pages.
2. Phone Navigation Bar
The Phone Navigation bar provides buttons to Add and Delete existing phone numbers and to navigate to different phone numbers in the Phone details Page.
3. Phone Type - select the type of phone number from the drop down list of types.
Once you have entered one or more addresses for the new user, Click on the
Next Page button to display the Internet Details Page
Further reading from Adding Phone Numbers: