Cruise Ship Roaming

[inquisitor]

Yesterday I returned from a cruise with MSC. Allthough MSC published some nuts roaming rates for the onboard GSM network ("On-waves", MCC 284 MNC 08 ) with outgoing calls for € 4.40 + VAT and SMS for € 0.70 + VAT, my British Vodafone PAYG SIM did roam at EU-rates. So outgoing SMS were charged with GBP 0.12 and due to the activated Passport Option incoming calls were absolutely free, whereas German O2 customers paid € 1.59/min for incoming calls. Unfortunatley outgoing calls were blocked for my British Vodafone PAYG SIM.
Anyway with Callbacks through poivy.com I could call Germany for € 0.09 (landlines) or 0.17 (mobiles) from aboard the vessel, while others were charged some € 5.00/min.