发明名称 Methods and apparatus for establishing a call in a cellular mobile network
摘要 It is desirable to allow mobile stations such as mobile telephones or cell phones to connect to a wireless cellular network even without the presence of a SIM card or other identification information. This is desirable for example, for access to emergency services. By configuring the mobile station to be able to populate replies to request for identification information during call set up which are received from the network, it is possible to avoid redesigning the network while providing "SIM-less" access to the network.
申请公布号 US6957060(B1) 申请公布日期 2005.10.18
申请号 US20010995926 申请日期 2001.11.28
申请人 NORTEL NETWORKS LIMITED 发明人 SHARP IAIN
分类号 H04M1/66;H04M1/675;H04M1/68;H04M3/16;H04W4/22;H04W8/18;(IPC1-7):H04M1/66 主分类号 H04M1/66
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