HP FlexNetwork MSR Series Configuration Manual page 228

# Specify that calls with the source IP addresses 1.1.1.1 are permitted on VoIP voice entity 1.
[TG-voice-dial-entity1] match source address ipv4 1.1.1.1
Other configurations on the SIP trunk device and on other devices are the same as that described in
"Configuration
Configuration verification
•
Private network users connected to Router A1 can call public network users, but private
network users connected to Router A2 cannot call public network users.
•
Public network users can call any private network user.
procedure."
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