Home / Sponsored StoriesAdvertorial by 2degrees2degrees’ Callander wants rivals to use 2degrees’ calendar 14 Mar, 2023 02:21 AMMark Callander. Chief executive, 2degrees. Photo / Supplied.Advertorial by 2degreesSubscribe to listenAccess to Herald Premium articles require a Premium subscription. Subscribe now to listen.Subscribe nowAlready a subscriber? Sign in hereListening to articles is free for open-access content—explore other articles or learn more about text-to-speech.SaveShareShare this articleCopy LinkEmailFacebookTwitter/XLinkedInReddit