Abstract: A mobile device (301) for use in a wireless communication network, said mobile device comprising a processor (335) arranged to send a short message delivery receipt to a communication party, after normal receipt by the communication device of a first short message sent by said communication party, said first short message delivery receipt being in a byte format different than the received first short message, Send mobile originated (MO) short messages, of the same byte format as the received first short message, transfer the received first short message to an identification module (350) of the mobile device when said first short message is identified as a data update message comprising a data update for said identification module, the processor being further arranged, upon determination by the authentication module that the communication party requested from said authentication module that proof of receipt (PoR) data for the data update be inserted in a new MO short message serving as a PoR message to said co

Abstract: A service node (520) for filtering in a wireless communication network short messages sent by a communication party (510) to a mobile device (530), said service node being arranged to intercept a first short message sent by the communication entity to the mobile equipment, find, upon determining that the intercepted short message is a data update short message comprising a data update for the mobile equipment, if the first short message comprises an indication that the communication party is requesting a proof of receipt message issued by said mobile equipment in reply to the reception of said first short message, in the same byte format as the first short message, provided the indication is found, modify the subsequent transmission of the first short message to the mobile device when said communication party matches a predefined criterion.

Abstract: A mobile device (301) for use in a wireless communication network, said mobile device comprising a processor (335) arranged to send a short message delivery receipt to a communication party, after normal receipt by the communication device of a first short message sent by said communication party, said first short message delivery receipt being in a byte format different than the received first short message, send mobile originated (MO) short messages, of the same byte format as the received first short message, transfer the received first short message to an identification module (350) of the mobile device when said first short message is identified as a data update message comprising a data update for said identification module, either one of the processor and the authentication module being further arranged, upon determination by the authentication module that the communication party requested that proof of receipt (PoR) data for the data update be inserted in a new MO short message serving as a PoR messag