User manual

VOPTech GoIP User Manual

3.7.2.3 Password or Trust List Authentication

Downlink Uplink

This mode is used to set the above password authentication and trust list authentication at the

same time.

For a downlink call, the authentication mode is as follows: If the number in the trust list is

used to dial the user served by the PSTN, the call will be connected. When the number you

dialed is not in the trust list, you need to enter the password after the secondary dial tone is

played. Then, the call will be connected.

For a uplink call, the authentication mode is as follows: If the mobile number or fixed number

in the trust list is used to dial the user served by the VoIP, the call will be connected. When the

number you dialed is not in the trust list, you need to enter the password after Please Enter the

Password is played. Then, the call will be connected.

3.8 Call Duration Limit

The call duration limit is to limit the call duration of SIM cards in the gateway. Through this

function, you can specify the total call duration of SIM cards. When the call duration is longer

than the specified value, the calls shall not be connected to prevent the unnecessary or unsafe

call charging. The setting parameters are as follows: