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Text conversation turntaking limitations draft-hellstrom-text-turntaking-00.txt Need for gateways SIP devices <> PSTN textphones. For indication to SIP device user what turn-taking habits must be applied. For routing to the most capable device for text conversation. Defines a Media feature tag sip.text-turntaking to be declared by gateways Proposed values: no, unspecified, soft, strict Values match different PSTN textphone types behind a PSTN/SIP gateway. Needed to avoid confusion for SIP text users who are used to full simultaneity of text and voice. Same function was discussed as an SDP media-contents attribute in mmusic, but cancelled. Is using the SIP Media feature tag right way to go? Is there interest in this work in the SIPPING WG? V.18 ToIP ToIP able SIP Phone ToIP-PSTN GW PSTN Textphone |