[O] Icalendar export and contacts

[Simon Thum]

Hi all,

I'm using the icalendar exporter and the vcard export in org-contacts. I 
use the [[tel:xxx]] links as they help keep things clean.

Unfortunately I now get

user-error: Unable to resolve link "tel:xxx"

and the icalendar export full stops. Is there a way to declare the link 
type (I am loading org-contact) or avoid the exporter messing with it? I 
did not find such a possibility in the manual.

In my use case, synchronization,, I don't care too much about the links 
being "resolved", I care about my export not failing badly.

Thanks in advance,

Simon