A method of managing a unicast-based media session, said unicast-based media session being associated with a session identifier, said method comprising the steps of: - a user terminal receiving channel identifiers of multiple available media channels; - said user terminal generating a first Session Initiation Protocol, SIP, based channel request comprising a first channel identifier selected from said received channel identifiers, a port identifier of at least one media input port of said user terminal and a codec identifier of a media codec used for processing media content of said first media channel, where the first channel identifier is associated with the first media channel; and - said user terminal transmitting said first SIP-based channel request to a network node for initiating delivery of media data of a first media channel to said at least one media input port; - said user terminal transmitting a SIP-based termination message comprising said session identifier to said network node; - said user terminal generating a second SIP-based channel request comprising a second channel identifier selected from said received channel identifiers, a port identifier of at least one media input port of said user terminal and a codec identifier of a media codec used for processing media content of said second media channel; and - said user terminal transmitting said second SIP-based channel request to said network node for initiating delivery of media data of a second media channel to said at least one media input port, wherein said step of generating said second SIP-based channel request comprises said user terminal generating said second SIP-based channel request comprising said second channel identifier and a notification specifying that said at least one media input port identified in said first SIP-based channel request is to be re-used for said second media channel. - a user terminal receiving channel identifiers of multiple available media channels; - said user terminal generating a first Session Initiation Protocol, SIP, based channel request comprising a first channel identifier selected from said received channel identifiers, a port identifier of at least one media input port of said user terminal and a codec identifier of a media codec used for processing media content of said first media channel, where the first channel identifier is associated with the first media channel; and - said user terminal transmitting said first SIP-based channel request to a network node for initiating delivery of media data of a first media channel to said at least one media input port; - said user terminal transmitting a SIP-based termination message comprising said session identifier to said network node; - said user terminal generating a second SIP-based channel request comprising a second channel identifier selected from said received channel identifiers, a port identifier of at least one media input port of said user terminal and a codec identifier of a media codec used for processing media content of said second media channel; and - said user terminal transmitting said second SIP-based channel request to said network node for initiating delivery of media data of a second media channel to said at least one media input port, wherein said step of generating said second SIP-based channel request comprises said user terminal generating said second SIP-based channel request comprising said second channel identifier and a notification specifying that said at least one media input port identified in said first SIP-based channel request is to be re-used for said second media channel.