In a mobile communications network, a delivery acknowledgement receipt can be sent to indicate a SMS message is delivered. A system can be based on currently-existing protocols, such as described in the IS-136 standard. Existing network signals that acknowledge receipt of a message can be captured and...http://www.google.es/patents/US7116997?utm_source=gb-gplus-sharePatente US7116997 - Method and apparatus for network-assisted automatic confirmation of short message service delivery
Method and apparatus for network-assisted automatic confirmation of short ...
