55555 Whether male or female,there seem to be plenty of these type of companies that offer cheap calls around the world.
DialAbroad - Calling Thailand - Cheap international calls to Thailand from any UK landline or mobile
The above one says 3p a minute from a landline in the UK to LOS, but Im a bit of a sceptic about this, and always think there is a scam going on and will be proven when the phone bill arrives.