Instructions for calling from the UK to international locations requires special calling codes that allow you to connect to countries outside of the United Kingdom.
Calling out to Serbia
Here are the instructions on how to call the country of Canada from the United Kingdom.
To call Serbia, dial 00381 and then enter the phone number of the person or location you’re trying to reach. If the phone number is displayed with a leading +381 omit the 381 and replace it with the UK international dialing code of 00. For example:
Phone Number in Serbia
Dialed from the United Kingdom
+381 xxx xxxx
00 xxx xxxx
00 145 9749
How to call the UK from Serbia
To call a landline or mobile phone in the United Kingdon from Serbia, dial 00 44, then dial the UK phone number, minus the leading zero. For example: