Is there some mechanism to reload Contacts and their attributes at runtime, without a full Kamailio restart? 

Known to me tools:

rpc ul.add will add a new Contact, but not its attributes

rpc ul.flush will flush from memory to DB, not the other way around

Having a combination of registered/permanent Contacts, I can add permanent ones with ul.add, however I couldn't find a way to set its attributes other than in DB location, which implies the need for a reload.

Thanks in advance.

--Sergiu