Section: 8.5.5 Session management
Content: a) If the message is a DEACTIVATE PDP CONTEXT REQUEST, a DEACTIVATE PDP CONTEXT ACCEPT message shall be returned. All resources allocated for that context shall be released. b) If the message is a REQUEST PDP CONTEXT ACTIVATION, a REQUEST PDP CONTEXT ACTIVATION REJECT message with cause # 96 "Invalid mandatory information" shall be returned. c) If the message is an ACTIVATE PDP CONTEXT REQUEST, an ACTIVATE PDP CONTEXT REJECT message with cause # 96 "Invalid mandatory information" shall be returned. d) If the message is an ACTIVATE SECONDARY PDP CONTEXT REQUEST, an ACTIVATE SECONDARY PDP CONTEXT REJECT message with cause # 96 "Invalid mandatory information" shall be returned. e) If the message is a MODIFY PDP CONTEXT REQUEST, a MODIFY PDP CONTEXT REJECT message with cause # 96 "Invalid mandatory information" shall be returned. f) If the message is a REQUEST MBMS CONTEXT ACTIVATION, a REQUEST MBMS CONTEXT ACTIVATION REJECT message with cause # 96 "Invalid mandatory information" shall be returned. g) If the message is an ACTIVATE MBMS CONTEXT REQUEST, an ACTIVATE MBMS CONTEXT REJECT message with cause # 96 "Invalid mandatory information" shall be returned. h) If the message is a REQUEST SECONDARY PDP CONTEXT ACTIVATION, a REQUEST SECONDARY PDP CONTEXT ACTIVATION REJECT message with cause # 96 "Invalid mandatory information" shall be returned.