Huawei Technologies This document proposes behavior of a RTCWeb signaling gateway for mapping message representations between RTCWeb Offer/Answer Protocol (ROAP) scheme and XMPP/Jingle messaging scheme. Such a signaling gateway is intended to translate ROAP to/from XMPP/Jingle [XEP-0166] for enabling use cases between a RTCWeb enabled browser and legacy mobile devices which use XMPP/Jingle for signalling.