Callinon VII

Callinon VII is the seventh planet of the Callinon star system in the Gamma Quadrant. It was the site of a Dominion subspace relay station that the Karemma were instructed by the Vorta to send all messages for the Dominion to.

In 2371, Ornithar directed the crew of the USS Defiant (NX-74205) (I) to Callinon VII. After Jadzia Dax and Miles O'Brien beamed down to the station, a shield went up around it and Jem'Hadar fighters responded to the alert. Benjamin Sisko was forced to order the Defiant to leave without his two crewmembers. 

The Dominion abandoned the Callinon VII station and the rogue Vorta Luaran took it over. In 2376, the USS da Vinci travelled to Callinon VII to stop her. 

By the end of the year, the subspace relay operations on Callinon VII had resumed and were overseen by Vannis.