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 Sri Lanka
Here are the instructions on how to call the country of Canada from the United Kingdom.
To call Sri Lanka, dial 0094 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 +94 omit the 94 and replace it with the UK international dialing code of 00. For example:
Phone Number in Sri Lanka
Dialed from the United Kingdom
+94 xx xxx xxxx
00 xx xxx xxxx
11 237 3992
00 11 237 3992
How to call the UK from Sri Lanka
To call a landline or mobile phone in the United Kingdon from Sri Lanka, dial 00 44, then dial the UK phone number, minus the leading zero. For example: