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 Pakistan
Here are the instructions on how to call the country of Canada from the United Kingdom.
To call Pakistan, dial 0092 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 +92 omit the 92 and replace it with the UK international dialing code of 00. For example:
Phone Number in Pakistan
Dialed from the United Kingdom
+92 xx xxxxxxxx
00 xx xxxxxxxx
00 21 88553388
How to call the UK from Pakistan
To call a landline or mobile phone in the United Kingdon from Pakistan, dial 00 44, then dial the UK phone number, minus the leading zero. For example: