I've had my calls dropped a few times. Probably the telco fault but I've notice n4 call quality is not as good as my old n3.

Maybe I'm in denial but I still love my n4

Last time when I use BB9780 with DiGi contract calks always drop - data line not stable - I wrote down in my own note whenever the line quality is bad .
Now I already MNP it.
When I look back to the notes that I wrote down I said to myself - how can I bear with them for 3 years with all these kind of instabilities.