A lot of people have said moving to protocols like CalDAV and CardDAV for syncing email, contacts, calendar, tasks and notes from Kerio Connect to your mobile device is a sacrifice. Many have said Microsoft's Exchange ActiveSync (EAS) is a superior option.
I thought the same thing until I got my first iPhone with Siri support. I noticed quickly that CalDAV and CardDAV support a few things that EAS doesn't, including calendar colors across devices, multiple alarms, and broader attributes for contacts.
Speaking of contacts, I was excited that with my new iPhone, I could give titles to a lot of my contacts. I spent the better part of an hour going through and defining the friends, family and colleagues that I call the most. The next time I told Siri to dial my girlfriend I was surprised to find that it didn't recognize her. So, I told Siri again who my girlfriend was and tried it again - still the same problem. After some searching on the internet I saw that EAS only recognizes "business" related titles, like boss, assistant, and so forth. Well, when I checked my girlfriend's information I saw that it had changed her from girlfriend to boss!
I'm sure a lot of people who know me (girlfriend included) would probably argue that that was a more apt title for her but I wanted it to be right. After switching to CardDAV syncing I tried it again and it allowed me set her up properly as my girlfriend. Although, sometimes I swear she changes it to boss just to play with my head. This is just one of the features that makes me choose to use open source standards over EAS.
Kerio Sales Engineer
Original article available on our blog.
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