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 Czech Republic
Here are the instructions on how to call the country of Canada from the United Kingdom.
To call Czech Republic, dial 00420 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 +420 omit the 420 and replace it with the UK international dialing code of 00. For example:
Phone Number in Czech Republic
Dialed from the United Kingdom
+420 xxx xxx xxx
00 xxx xxx xxx
315 286 945
00 315 286 945
How to call the UK from Czech Republic
To call a landline or mobile phone in the United Kingdon from Czech Republic, dial 00 44, then dial the UK phone number, minus the leading zero. For example: