Yackiemobile - Anybody Heard Of Them?

[Przemolog]

Originally Posted by dg7feq

Technically you can send SMS to landline numbers too. In germany the network tries if the receiving phone is capable of reading SMS. Most modern phones can do so and also send SMS. If not you get a voicecall and the SMS gets read out by a computer voice.

But i think they will let you receive SMS on the mobile phone number as this would be much more easy to handle.

Yes, sending SMS to landlines is possible in Poland too, but GSM to landline SMSes cost usually 5-6 times more than regular SMSes, probably because of text2voice conversion and possible multiple attempts of delivery.
But the most important thing is that they cannot be sent abroad! So I think you're right that they must reveal the "secret" GSM number anyway