发明名称 |
Fixed cellular terminal with a distinctive dial tone to indicate an emergency call is being placed |
摘要 |
Of special application in cellular mobile networks that communicate this terminal, via radio, with a base station to provide services of voice and/or data communications to a number of subscribers and which, in addition to the basic communications service, also support an emergency call service performed through the terminal in question by dialling a certain number. This terminal comprises means (41) for generating user signalling tones and which also generate an emergency call dial tone, different from the other tones already present, when a call process is initiated by the subscriber (5) in the case where the fixed cellular terminal is only capable of making emergency calls.
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申请公布号 |
US5680439(A) |
申请公布日期 |
1997.10.21 |
申请号 |
US19950430810 |
申请日期 |
1995.04.28 |
申请人 |
ALCATEL N.V. |
发明人 |
AGUILERA, JOSE MARIA GARCIA;RUBIO, FRANCISCO JAVIER LEON;RAMIREZ, RAMIRO RAMIREZ |
分类号 |
H04M3/42;H04M1/677;H04W4/22;H04W88/02;(IPC1-7):H04M11/00;H04M9/00;H04M11/04;H04Q7/00 |
主分类号 |
H04M3/42 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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