Signal uses your iPhone contact list. See steps below to make changes to your iPhone contact list and then resync and refresh Signal.
- Open the iPhone Contact's app and edit a contact's entry. Make sure to include the area code and/or country code for your contact's phone number.
- Open Signal.
- Tap on compose .
- If you have Signal contacts, they will be listed. If you do not have Signal contacts, you can invite them.
- Pull down on the contact list to refresh.