mms server 130 that the mms server 130 uses a sip method notify for sending mms notifications mms subscription request m 401 has a form of message 20 b shown in fig3 b and it is sent by the terminal 101 as soon as it has been switched on for the first time and has network coverage the mms subscription request m 401 is acknowledged by the mms server 130 with an mms subscription response m 403 dashed box 43 shows how the terminal 101 is informed upon receipt of mms message n 404 as soon as the mms server 130 receives the mms message n 404 which belongs to a subscribed event package it sends mms notification m 405 to the mms user agent 180 informing it that the mms message n 404 has arrived at the mms server 130 the mms user agent 180 responds to mms notification m 405 with mms notification response m 407 dashed box 45 shows how the mms message n 404 received by the mms server 130 can be downloaded to the terminal 101 in response to the mms notification m 405 the mms user agent 180 can decide to download the mms message n 404 by sending an mms message retrieval request m 409 to the mms server 130 mms message retrieval request m 409 is a sip fetch message in response to receiving mms message retrieval request m 409 the mms server 130 sends mms message retrieval m 411 to the mms server 130 mms message retrieval m 411 includes the contents of mms message n 404 the mms user agent 180 acknowledges the receipt of the.