My brother who works on a farm in UK until November and uses an o2 SIM there , asked me to tell him how to decrease the cost of calls to Poland (mainly to landline but also to mobiles). Of course, he doesn't call at 1.50 GBP international rate, he uses some 0845 number for 15p instead. Nevertheless, it was possible in the past to call such numbers from O2 for 5p on weekends. What could the best solution - International Bolt-on? According to this link http://www.o2.co.uk/mobilestariffs/tariffs...nalcallerbolton
the rate to Poland is 7p landlines and 30p mobile and the activation is a single fee of 4.99, right? And those rates are valid 24/7? Or any other solution? :help:

Does he have access to a UK landline; If not then you what you mentioned are the best options for landlines.

What is the cost that he pays for dialing anormal landline in the uk; say a 0207 number (london based);

No, he doesn't have a landline access unless he walks a lot to the nearest payphone :).
He has also very limited access to the internet so any solution with web-based call triggering isn't OK.
As to calling 0207 or other UK landlines, I don't know which plan he has activated on his SIM. If Talkalot, then he pays 25p/min for the first 3 minutes a day and 5pmin for next ones, and if Original, 35p/min peak and 10p/min off-peak.

I would advice you to check this service: http://www.topupdiscount.co.uk/topuptext.php

it can be used from a mobile by dialing a 020 london based number (so it is probably cheaper than dialing 0844 numbers).

You should first ask him about the rate to call normal uk landlines.

If its cheaper than 0844 then this is your solution!
:beer:

O2 UK prepaid SIMs used to have 0844, 0845 and 0870 numbers included in the 100 free minutes package that you got on the first top-up in a month, but this was altered a few days ago, hence the 15p a minute charge mentioned above.

The international bolt-on was free for a promotional period, but now ?4.99 as you mention.

I've previously suggested that people mix callthrough numbers from the 100 inclusive minutes and calls at those int'l cheap tariffs from the top-up credit, thus getting about 250 or 300 minutes for ?10. Now that 0844 etc are not from inclusive minutes, I'd suggest calling card or callthrough via London numbers, eg from Nobelcom or Call18185, 1899, or 18866. Note that the latter have different rates from BT landlines to those from mobiles and other landlines

http://www.call18185.com/mobilerates.php
http://www.call18866.co.uk/mobilerates.php
http://www.call1899.co.uk/mobilerates.php
http://www.nobelcom.co.uk/

There are also some operations where you sens a premium rate text message to top-up an account, then get calls against this credit, like Topupdiscount as mentioned

For more ideas about various methods, see call comparisons at
http://callchecker.moneysavingexpert...ntcallchecker/
http://niftylist.co.uk/calls/to/poland/landline/

Thank you very much for the help.
I told my brother before he left that he should have bought a Mobile World SIM instead of O2 and not to worry about 084x numbers and peak/off hours. But of course he tried to be "wiser" and to pay 5p off peak via 084x instead of 7p when dialing directly from MW :P
I think that Bolt-on will be the best for him anyway. He is pretty busy and have not much time for buying calling cards or something like this...

The only problem with Mobile World is that there's no roaming and it expires after 90 days of no use. So if you go abroad for three months or more (as a lot of people who need low-cost international calls presumably do), it dies.