Grandstream Networks HT881

Enable CID per call Enable CID per call: Default is 82
Disable CID per call Disable CID per call: Default is 67
Direct IP Calling Feature Allow users to customize the Direct IP feature code. Default isYes
Direct IP Calling Direct IP Calling: Default is47
CW Feature Allow users to customize the call waiting feature codes. Default is Yes
Enable CW Enable CW: Default is 51
Disable CW Disable CW: Default is 50
CW per call Feature Enable or cancel the call waiting function, only the current call is valid
Enable CW per call Enable CW per call: Default is 71
Disable CW per call Disable CW per call: Default is 70
Call Return Feature Allow users to customize the Call Return feature code. Default is Yes
Call Return Call return: Default is 69
Unconditional Forward Feature
Allow users to customize the Unconditional Forward feature codes.
Default isYes
Enable Unconditional Forward Set the function code to enable unconditional call forwarding (default value is 72)
Disable Unconditional Forward Set the function code to cancel unconditional call forwarding (default value is 73)
Busy Forward Feature Whether to enable the call forwarding function when busy
Enable Busy Forward Set the function code to enable call forwarding when busy (default value is 90)
Disable Busy Forward Set the function code to cancel call forwarding when busy (default value is 91)
Delayed Forward Feature Whether to enable the function of transferring calls without answering
Enable Delayed Forward Set the function code to enable call transfer without answering (default value is 92)
Disable Delayed Forward Set the function code for canceling unanswered call transfer (default value is 93)
Paging Feature Allow users to customize the Paging feature code. Default is Yes
Paging Paging: Default is 74
DND Feature Allow users to customize the CW feature codes. Default is Yes
Enable DND Enable DND: Default is 78
Disable DND Disable DND: Default is 79