ATCOM AT840 series, User Manual

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ATCOM TECHNOLOGY CO., LIMITED www.atcom.cn
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5.7. 5.7. 5.7. 5.7. Ext Ext Ext Ext Key Key Key Key
After connect extension module to AT840's EXT port, AT840 will auto detect the
extension module. There are 20 keys on each extension module.
� Event:
� None: Do not use this BLF key
� Speed dial: Speed dial, need to fill a speed dial number.
� BLF: Busy lamp field, need to fill a BLF number to monitor.
When the BLF number is ringing , the BLF key will turn to red and blink.
When the BLF number is during a call, the BLF key will stay for red.
The BLF key will be yellow, if the BLF number is idle. And you can press the Key
to call the number(like speed dial).
� Account: which account you want to used.
� Number: which number to set for CFWD, speed dial, BLF etc.
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