置, 類比外線容量, 2-10, 4-16. ISDN 外線(最大), 4 BRI (8 Channels), 4 BRI (8 Channels). 內線容量, 16-40, 8-48. 內線+外線(最大), 42, 56. 數位話機容量, 2-40 ...
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