Sony Ericsson T310 User Manual page 57

Feature
MMS User Agent will report problems to user
in case of:
Support in the T310/T312
message not sent causes no user subscription to
service, if included in ResponseText (please see
WAP209)
message not sent causes required functionality not
supported by MMS Relay/Server, if included in
ResponeText (please see WAP209)
message not sent causes insufficient credit (in case of
prepaid charging), if included in ResponeText (please
see WAP209)
57
T310/T312
White Paper
January 2003