| 摘要 |
2102408 9320624 PCTABS00027 A communications system comprising: first (1) and second (40) communications units (e.g. a base station and a handset of a telepoint system) having means for communicating over a base set of communications channels, means for selecting one of said base set for establishing communication and means in said first unit for communicating to said second unit information as to capabilities of said first unit when communication has been established. The system is characterized in that the first unit has means for communicating over an extended set of communications channels in addition to the base set and the means in the first unit for communicating the information comprise means for informing the second unit of the first unit's extended channel capability and the spectral location of the extended set of channels.
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