I have issues with the phone too. I find calls from numbers I don't recognize triggering due to some events from the past. I'm in financial trouble so I get calls from morning to evening every day. I keep my ringer and vibrate turned off unless I'm expecting a call I can't ignore. I absolutely can not have voice mail, and have to make sure it is disabled and never a possibility of getting one. I have to have plenty of room to talk on the phone so I can pace quickly. I often go outside to make a phone call so I can walk all over the place. Every time I get a call from a new number, I have to save it in my contacts and look it up on google and make a note of who it likely is. Numbers I cant identify cause even more anxiety.

If I miss a call from a local number, or numbers within my state I will usually return those calls if I can not figure out who it was by googling them because I have to know who is after me. I usually get tight chested and have trouble breathing listening to it ring waiting for them to answer. Those first few moments until I they tell me who they are and what they want, I'm usually holding my breathe and getting hypervigilent,and being put on hold or having to wait to be transferred to the person seeking me is horrible.