The invention relates to a system and method of managing SMS messages in a first mobile operator network, said network comprising a plurality of subscribers and a Short Message Service Centre (SMSC) The invention can be implemented by carrying out the steps of starting a delivery attempt of the SMS message...http://www.google.com.hk/patents/US8005493?utm_source=gb-gplus-share專利 US8005493 - Messaging system and method