SMC Networks SMCBR21VPN - Manual (Page 129)

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The external user use VoIP to connect with VoIP of LAN (VoIP Port:
TCP 1720, TCP 15328-15333, UDP 15328-15333)
STEP 1﹒Set up VoIP in LAN network, and its IP is 192.168.1.100
STEP 2﹒Enter the following setting in LAN of Address function: (Figure10-11)
Figure10-11 Setting LAN Address WebUI
STEP 3﹒Add new VoIP service group in Custom of Service function.
(Figure10-12)
Figure10-12 Add Custom Service