Volume Settings for VIP-156T/VIP-156PT
Beside the above settings, VIP-157 also can set the volume of PSTN.
PSTN-Out Volume is to set the PSTN volume for you can hear.
PSTN-In Gain is to set the volume send out to the other side’s handset.
Volume Settings for VIP-157
28BDail Plan Setting
This page defines the Dial Plan Setting function. This function is when you input the phone number by
the keypad but you don’t need to press “#”. After time out the system will dial directly.
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