| 摘要 |
The present invention provides a combined user agent(14)(CUA)to represent a telephone(22)supported by a circuit−switched telephony switch(24)and a packet−based media device(18)as an integrated group(34)to other network entities(30).The CUA is configured to facilitate the necessary call signaling to establish and control a voice call via the telephony switch,as well as the session control signaling necessary to establish and control a media session with the media device.Accordingly,the telephone and media device appear to the network devices as a single device having voice and media capabilities,wherein the voice capabilities are controlled in part by the telephony switch.
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