fixed in 0.9.7 by removing issues tracker
Yes, SFOS no longer allows 3rd party apps to access the contacts database, copying it over to a different directory may help:
devel-su cp -r ~/.local/share/system/privileged/Contacts/qtcontacts-sqlite/contacts.db ~/.local/share/harbour-s1p/
Removing spaces from the phone number may help.
Correct. Convincing Jolla to change the phone app may help.
It does not pass it into the text field but should start the call regardless.
Most likely a SIP signalling issue which I won’t be able to address without a SIP trace.
Should be fixed in 0.9.7