How to use the Call 15 service

Just dial any Call15 number advertised opposite and you can achieve the lowest international call rates from any O2 SIM cards mobile.

1. From any O2 SIM cards phone dial any of the 151X 77 88 77 access numbers.
2. When prompted dial the number you wish to call including the international access code. Don't press the green 'send’ key after you have dialled the number you wish to call as this will disconnect you from our platform and send your call to O2.
3. Our system will announce the number of minutes for your call, if you do not use them all then press # #  and dial another number.

The cost of your International call is included.  You will only pay for the Premium Rate Number that you dial.

All 151x numbers and associated cost are as advertised in the table to the left.

The 151x cost is deducted direct from your phone credit or charged to your O2 SIM cards bill.

Don't press the green 'send’ key after you have dialled the number you wish to call as this will disconnect you from our platform and send your call to O2.