Ovislink OV804WV User Manual page 205

Step 3 Press *70 to disable Call forwarding if no answer.
4.6.3.12 Call Forwarding when Busy
If this feature is enabled, incoming calls is forwarded to a third
party when you busy. It involves two steps: setting the
forwarding number and enable the feature.
Step 1 Dial *74<NUM># to set forwarding number, wherein
NUM is the number of the party to who the call is
forwarded. Note if we have already set forwarding
number before, this step can be omitted.
Step 2 Press *72 to enable Call forwarding when busy. That
is, when our phone gets busy, this call is forwarded.
Step 3 Press *70 to disable Call forwarding when busy.
4.6.3.13 Forwarding All Calls
If this feature is enabled, incoming calls is forwarded to a third
party without any reason. It involves two steps: setting the
forwarding number and enable the feature.
Step 1 Dial *74<NUM># to set forwarding number, wherein
NUM is the number of the party to whom the call is
forwarded. Note if we have already set forwarding
number before, this step can be omitted.
Step 2 Press *73 to enable Forwarding all calls. That is, all
incoming calls are forwarded to the third party.
Step 3 Press *75 to disable Forwarding all call, but keep Call
forwarding if no answer and Call forwarding when busy
unchanged.
Step 4 Press *70 to disable all call forwarding function.
4.6.3.14 Three-Way Conferencing
Three-way conferencing enables you to invite a third party to a
call, and every person in the conference is able to hear others'
voice.
Step 1 Assume that you are in connection with the first party.
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