STEP 2﹒Enter the following setting in Custom of Service function:
Click New Entry (Figure5-3)
Service Name: Enter the preset name VoIP
Protocol#1 select TCP, need not to change the Client Port, and
set the Server Port as: 1720:1720
Protocol#2 select TCP, need not to change the Client Port, and
set the Server Port as: 15328:15333
Protocol#3 select UDP, need not to change the Client Port, and
set the Server Port as: 15328:15333
Click OK (Figure5-4)
Figure5-4 Complete the Setting of User Define Service of VoIP
Figure5-3 Add User Define Service
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