Hello
If you mean a connection for your home phone to the hub then it isn't VOIP it is 21CV, then they will not be able to obtain any settings from the hub, the service although use the internet cable from you it still has to be converted over to a normal exchange at some point, a call cannot be tracked that would be a serious breech of GDPR, the only thing that a company may have is your phone number as although ex-directory that doesnt stop the line from sending your caller ID (Your phone number) you would have had to start calling with 141 and then the number you are calling for example 141012345678 that would withhold your number.
Have a look at https://www.virginmedia.com/shop/phone/calling-features
For some information on the 141 service.
Regards Mike
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