If the MT call event is part of the current event list (as set up by the last SET UP EVENT LIST command, see
clause 6.4.16), then when the ME receives an incoming call setup message, the ME shall inform the UICC that this has occurred, by using the ENVELOPE (EVENT DOWNLOAD - MT call) command as defined in
clause 7.5.1A.2.
Direction:
ME to UICC.
The command header is specified in
TS 31.101.
Command parameters/data.
Event list: the event list object shall contain only one event (value part of length 1 byte), and ME shall set the event to:
Device identities: the ME shall set the device identities to:
-
source: network;
-
destination: UICC.
Transaction identifier: the transaction identifier data object shall contain one transaction identifier, and this shall be the Transaction Identifier as defined in
clause 8.28.
Address: the address data object holds the Calling Party number received by the ME in the call setup message. If the Calling Party number is included in the call setup message, the ME shall include the Address object. Otherwise the ME shall not include the Address object.
Subaddress: The Subaddress data object holds the Calling Party Subaddress as received by the ME in the call setup message. If the Calling Party Subaddress is included in the call setup message, the ME shall include the Subaddress object, otherwise the terminal shall not include the Subaddress object.
IMS URI: The IMS URI data object is a SIP or TEL URI of the Calling Party received by the ME in the call setup message. This data object will be present only if the
"URI support by UICC" Service is present in the USIM or the ISIM Service Table. The IMS URI data object shall contain the SIP URI or tel URI indicated in the P-Asserted-Identity field as defined in
TS 24.229. In case the P-Asserted-Identity field is missing the SIP URI or tel URI indicated in the From header field shall be used. If the URI is longer than the maximum length that can be transmitted to the UICC, then the URI shall be truncated to the maximum length that can be transmitted to the UICC and the request shall contain a URI truncated tag.
Media Type: The Media Type indicates the type of media of the incoming call session and shall be coded as defined in
clause 8.132. The Media Type data object shall be present, if the
"Media Type support" service is allocated and activated in the USIM or ISIM Service Table.
Response parameters/data: