DAG Series User Manual
36
Dinstar Technologies Co., Ltd.
3) If only part of the caller User ID with this problem, please contact the telecom carrier.
4.5 When calling in, the caller always hears a busy tone
Make sure enable DND(Do-not-Disturb) in system
4.6 Sudden interruption during a call
1) make sure whether is human error caused the problem
2) Make sure with the account balance or lack of disruption caused the call disconnected
3) Make sure whether there is interference with the fax tone or equipment busy tone, these
interference may lead to calls dropped
4) Make sure whether the LAN equipment such as gateway or router fails, user can try to restart
the gateway or router please download tutorials from our official website .
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