User Guide

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3.6. Intercom Call
3.6.1. IP Direct Call
Without sip server, users can also use IP address to call each other,
but this way is only suitable in the LAN.
On the web portal, go to Phone - Call Feature - Others - Direct IP
to enable the direct IP function.
Enter the IP address of the caller, and then press Audio Call or
Video Call to make a call.
3.6.2. SIP Call
Sip call uses sip number to call each other which should be
supported by sip server. Users need to register an account and fill
some sip feature parameters before using it.
Figure3.6.1-2Direct IP call
Figure3.6.2-1 SIP call
Figure3.6.1-1 IP call switch