Re: re: 1) my phone blocks numbers not in my contact list
Not if the PABX is Centrex* style, then each extension has its own landline number.
Most universities and hospitals do this... extension 1234 will have the number 0xxxx xx1234 as its caller ID and DDI number
*centrex is a US term, I forget what Brutish Tellycon call theirs
Biting the hand that feeds IT
