User Guide

13
R20A
Admin Guide
 UDP: UDP is an unreliable but very efficient transport layer
protocol.
 TCP: Reliable but less-efficient transport layer protocol.
 TLS: Secured and reliable transport layer protocol.
 DNS-SRV: DNS record for specifying the location of services.
3.4.2.5. NAT
To display and configure NAT settings.
 STUN: Short for session traversal utilities for NAT, a solution to
solve NAT issues.
Note:By default, NAT is disabled.
After all, press the push button to make direct IP call.
3.4.3. .Auto Answer
Go to Account - Advanced to enable auto answer feature for SIP
calls.
Figure 3.4.2.4Transport type
Figure 3.4.2.5NAT
Figure 3.4.3-2 Auto answer for direct IP calls
Figure 3.4.3-1 Auto answer for sip calls