I recently noticed these ported number don't have caller ID.
When they call me, the phone just display that the calling party as unknown without names or phone numbers, which is kinda frustrating when you don't know who is calling you really, and I can not call back if I missed any calls.
I set my phone with the network default option for calling ID etc.
The "unknown" number and names problem did not happened with original voda, 2d or telecom numbers.
Any one know what's going on there?