RCA IP160 Operation Manual page 8

Enter display name, user id, password, SIP Server and Outbound Proxy server of
the SIP account. Check the Active field to Enable/Disable. Press the "Save" button
to confirm.
If the SIP settings are configured correctly, the handset will now be able to make
and receive VOIP calls.
Handset menu
On the handset, go to menu "Settings [ VOIP Account Setup", Select a account
to edit. input the information (Account Name, Label, Display Name, Register
Name, User Name, Password, SIP Server, Outbound status, Outbound Proxy, STUN
Status and STUN server),
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