At&t Intellectual Property I, LP

Chaoxin Qui

Niral Sheth

A method includes receiving a call setup signaling message at a subject line messaging application server. The call setup signaling message includes a subject header. The subject header includes a message identifier that corresponds to a subject line message selected by a caller device. The method includes replacing the message identifier with the subject line message to form a modified call setup signaling message when a removal determination indicates that the subject header should remain. The method also includes sending the modified call setup signaling message to a called party device via a server.

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Chaoxin Qui