A method of handling media types of an Internet Protocol, IP, multimedia communication session in an IP Multimedia communication Subsystem, IMS, by a calling User Equipment, UE, and a called mobile UE comprising an IMS client (6, 7) supporting Session Initiation Protocol, SIP, signalling, said IMS comprising an IMS node having processing means connected to communication means for supporting a multimedia communications session in said IMS, and a remote terminal equipment (8, 9)arranged for exchanging multimedia content via said IMS, said method comprising: - receiving a SIP session set up request message, from said calling UE, by said called mobile UE for establishing a first multimedia communication session in said IMS communication system with said calling UE supported by said IMS node, and - processing said received SIP session set up request message by said IMS client of said called mobile UE, said method being characterized by the steps of: - initiating, by said IMS client of said called mobile UE a presentation of media type handling options by said called mobile UE based on said processed SIP session set up request message, - receiving media type handling instructions by said called mobile UE based on said presented media type handling options, - initiating, by said IMS client of said called mobile UE, in response to said processed SIP session set up request message, a transmission of a SIP session accept message to said calling UE in accordance with said received media type handling instructions, - initiating, by said IMS client of said calling UE a second multimedia communication session with remote terminal equipment (8, 9) supported by said IMS node based on said SIP session accept message, and - forwarding, in said second multimedia communication session, by said IMS node to said remote terminal equipment (8, 9) at least one media type of said first multimedia communication session. - receiving a SIP session set up request message, from said calling UE, by said called mobile UE for establishing a first multimedia communication session in said IMS communication system with said calling UE supported by said IMS node, and - processing said received SIP session set up request message by said IMS client of said called mobile UE, said method being characterized by the steps of: - initiating, by said IMS client of said called mobile UE a presentation of media type handling options by said called mobile UE based on said processed SIP session set up request message, - receiving media type handling instructions by said called mobile UE based on said presented media type handling options, - initiating, by said IMS client of said called mobile UE, in response to said processed SIP session set up request message, a transmission of a SIP session accept message to said calling UE in accordance with said received media type handling instructions, - initiating, by said IMS client of said calling UE a second multimedia communication session with remote terminal equipment (8, 9) supported by said IMS node based on said SIP session accept message, and - forwarding, in said second multimedia communication session, by said IMS node to said remote terminal equipment (8, 9) at least one media type of said first multimedia communication session.