Supervisory audio tone-signalling tone (SAT-ST) handling

Methods and systems allowing for the following two Supervisory Audio Tone-Signalling Tone (SAT-ST) qualifications: (1) when detecting a ST as being on, the signalling tone signal is accepted if the SAT strength value indicates that the SAT is on, in accordance with the IS-54-B standard; and (2) when...

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Bibliographische Detailangaben

Hauptverfasser:	F. GUSTAFSON, J.-E. LUNDBERG
Format:	Patent
Sprache:	eng
Schlagworte:	ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY TRANSMISSION WIRELESS COMMUNICATIONS NETWORKS
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