Yealink VC880 - Enabling STUN Feature for SIP Protocol

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Parameter Description Configuration Method
STUN Port
Configure the port of the STUN
(Simple Traversal of UDP over
NATs) server.
Default: 3478.
Web user interface
Endpoint
CTP20
Enabling STUN Feature for SIP Protocol
If you want to make private-to-public calls via SIP protocol (SIP account and SIP IP call), you can enable
STUN feature for SIP protocol.
Procedure
1. Do one of the following:
• On your web user interface, go to Account > SIP Account/SIP IP Call > NAT Traversal.
• On your VCS, go to More > Setting > Advanced > SIP IP Call Out.
On your VP59, tap Setting > Advanced > SIP IP Call > NAT Traversal.
• On your CTP20, tap Setting > Advanced > SIP IP Call Out > NAT Traversal.
2. Configure and save the following settings:
Parameter Description Configuration Method
NAT Traversal/
NAT Type
Select STUN.
Web user interface
Endpoint
CTP20
Related tasks
Setting SIP Account/SIP IP Call
Configuring NAT
H.460
VCS allows the firewall traversal of H.323 calls via H.460 protocols. To use this feature, make sure your
gatekeeper supports H.460 feature.
Note: