RTP Payload for Text Conversation. - Gunnar Hellström (RFC, 2000)

RTP Payload for Text Conversation. - Gunnar Hellström; Paul E. Jones (RFC, 2005)

Real-Time Transport Protocol (RTP) Payload for Text Conversation Interleaved in an Audio Stream. - Gunnar Hellström; Paul E. Jones (RFC, 2006)

Standardization of real-time text in instant messaging. - Mark Rejhon; Christian Vogler; Norman Williams; Gunnar Hellström (ASSETS, 2013)

T.140 Real-Time Text Conversation over WebRTC Data Channels. - Christer Holmberg; Gunnar Hellström (RFC, 2021)

RTP-Mixer Formatting of Multiparty Real-Time Text. - Gunnar Hellström (RFC, 2021)