I have noticed that while on the phone I can't use my mobile network. I have tried to look online for a solution but was hoping to here you can tell me what will work for sure.
Thank you
Go into settings>advanced calling and enable the feature. You'll need to have 4G service to do both, but it should work once you do that.
Is this a free service/option?
It is, but just so you can verify here is the FAQ page:
Advanced Calling 1.0 | Verizon Wireless
Section 1, number 7.
I have tried activating it several times and it errors..?
