Online Callbook is an extension for Mozilla Firefox to find QSL information from the HAM radio web sites, such as QRZ.COM, ARRL.ORG, RAC.CA, QRZ.RU, BUCK.COM, and CQHAM.RU using shortcut buttons on the toolbar.
Version
2.0
Release status
Final
Operation systems
Windows 2000, Windows 7, Windows Vista, Windows XP