International calling

I get a strange ringtone that is long and short bursts followed by long pauses of silence. After several attempts like this the call will sometimes go through. When the call does complete, the receiver tells me this is the first time the phone rang on their end.

Can you confirm my international calling plan include unlimited calls to Greece landline and mobiles?

I am familiar with what an international ringtone sounds like, as I have been calling with other services for many years

We can take a look for you. Could you please send our team a direct message with your full name and full address? Our team can most definitely take a further look at this issue.To send a "Direct Message":
Click "Sign In" if necessary
• Click the "Direct Message chat" icon
• Click the "New message" (pencil and paper) icon
• Type "Xfinity Support" in the "To:" line and select "Xfinity Support" from the drop-down list which appears. The "Xfinity Support" graphic replaces the "To:" line
• Type your message in the text area near the bottom of the window
• Press Enter to send it