I've found a solution. I added the country code (I only had the city code in my numbers) and now it's working. I'm not happy with motorola, I didn't need to do this in my Samsung S3 Mini o my Xperia X10.
Moto X (XT1058) Stock 4.4.2
Galaxy S3 Mini (i8190L) - Sold
Xperia X10a - Still with me
Qtek A9100 (HTC Wizard 100 G4) - on some drawer...