Private branch exchange system

H - Electricity – 04 – Q

Patent

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Details

H04Q 7/26 (2006.01) H04Q 7/22 (2006.01) H04Q 7/24 (2006.01) H04Q 7/30 (2006.01) H04Q 7/38 (2006.01)

Patent

CA 2305072

Each of a plurality of mobile stations is provided with a plurality of extension numbers including at least one unique extension number, and different lines are set for the plurality of extension numbers respectively. This enables a call using a line even when another call is made using another line.

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