2N IP intercom Configuration Manual page 11

Proxy address – set the SIP Proxy IP address or domain name.
Registrar address – set the SIP Registrar IP address or domain name. The SIP
Proxy and SIP Registrar addresses are usually identical.
Registration enabled – enable intercom registration with the set SIP Registrar.
If your SIP server requires authentication of terminal equipment, enter the following
parameters:
Password – enter the password for intercom authentication.
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