16. A method comprising: storing a first greeting message in a first media format; receiving a first arrival notification of a first communication event, the first communication event being in a second media format; and generating a second greeting message in the second media format, the generation of the second greeting message being based on the reception of the first arrival notification, and content of the second greeting message being based on content of the first greeting message, wherein one of the first and second media formats comprises video and the other of the first and second media formats is a media format in which video is not included.
16. A method comprising: storing a first greeting message in a first media format; receiving a first arrival notification of a first communication event, the first communication event being in a second media format; and generating a second greeting message in the second media format, the generation of the second greeting message being based on the reception of the first arrival notification, and content of the second greeting message being based on content of the first greeting message, wherein one of the first and second media formats comprises video and the other of the first and second media formats is a media format in which video is not included. 17. The method of claim 16 wherein the content of the second greeting message is also based on a presence indication that pertains to a user.