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 Sudan
Here are the instructions on how to call the country of Canada from the United Kingdom.
To call Sudan, dial 00249 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 +249 omit the 249 and replace it with the UK international dialing code of 00. For example:
Phone Number in Sudan
Dialed from the United Kingdom
+249 xx xxx xxxx
00 xx xxx xxxx
18 365 4537
00 18 365 4537
How to call the UK from Sudan
To call a landline or mobile phone in the United Kingdon from Sudan, dial 00 44, then dial the UK phone number, minus the leading zero. For example: