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 Colombia
Here are the instructions on how to call the country of Canada from the United Kingdom.
To call Colombia, dial 0057 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 +57 omit the 57 and replace it with the UK international dialing code of 00. For example:
Phone Number in Colombia
Dialed from the United Kingdom
+57 x xxxxxxx
00 x xxxxxxx
00 1 2442928
How to call the UK from Colombia
To call a landline or mobile phone in the United Kingdon from Colombia, dial 00x 44, then dial the UK phone number, minus the leading zero. For example: