Given that OM CallBook has been running for more than 7 years and during that time some parts of the site have become outdated, I must proceed to transition to higher versions of the databases. I will be making these (and other) adjustments gradually until the end of July 2018. Therefore, it is possible that when opening some pages, the website will inform you of an error. This especially applies to pages:
OM CallBook, OM CallBook mobile version, HAM licenses, OM auction, HAM bazaar, SZR membership, QR payment Radio Journal, QR payment QSL services and related websites.
An outage of some service may last for a longer time (10-12 hours), so I would like to ask visitors of the site for patience and understanding.
Thank you,
Dušan, om2adp