[seqizz]

I don't think we can call landlines via these.

[scraft]

I have used Skype a lot for calling landlines and mobile phone numbers, in particular for people overseas where the phone bill would otherwise be high. I have also used this when I have zero phone reception but have access to Wifi.

[spurgu]

I'm from Europe and I'm baffled that this would be a requirement for anyone these days. Are landlines still that common in the US?

[nicoburns]

I'm from Europe and I've occasionally used this feature when e.g. I'd lost my phone, but needed to make a call to a customer service department.

[trumped]

they are very commonly used for robocalls/junk calls