Source URL: https://docs.surveycto.com/02-designing-forms/01-core-concepts/03w.field-types-phonenumber.html
Last updated: 2021-04-15
Field type: phonenumber
In the form designer, edit Form settings, then check the devicephonenum meta-data field (if it isn't already).
phonenumber: record the phone number associated with the device's SIM card, if any. This is an automatic, hidden field type: it is filled in automatically and never shows up in the survey's user interface.
In the spreadsheet form definition: