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Step 4: Pick up handset or press “Handfree” key from keypad of VIP-155PT-A and dial “2#”. Then the
phone of VIP-155PT-B should ring. You can do the same thing to the VIP-155PT-B.
y If the IP address of the remote calling party is known,
58
L
Hint
you may directly make calls by preset number via its
IP address and end with an “#”.
y If the IP phones are installed behind a NAT/firewall/
IP sharing device, please make sure the NAT device
support SIP applications before making calls
Proxy Mode
Number: 100 Number: 200
VIP-155T-B
WAN IP Address
(172.16.0.2)
SIP-50
WAN IP Address
(172.16.0.10)
VIP-155PT-A
WAN IP Address
(172.16.0.1)
SETP 1: