Yealink CTP18 Administrator's Guide

| Traditional Deployment Methods | 64
2. Configure and save the following settings:
Parameter Description Configuration Method
Active/STUN Active
Enable or disable the STUN
(Simple Traversal of UDP over
NATs).
Default: Disabled.
Web user interface
Endpoint
CTP20/CTP18
STUN Server
Configure the IP address or
the domain name of the STUN
(Simple Traversal of UDP over
NATs) server.
Note: the default value is blank.
Web user interface
Endpoint
CTP20/CTP18
STUN Port
Configure the port of the STUN
(Simple Traversal of UDP over
NATs) server.
Default: 3478.
Web user interface
Endpoint
CTP20/CTP18
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 > Settings > > Advanced > Account > SIP IP Call > NAT Traversal.
For VP59, tap Settings Advanced Account SIP IP Call NAT Traversal.
•
On your CTP20/CTP18, tap > Settings > Advanced > Account > SIP IP Call > NAT Traversal.
2. Configure and save the following settings:
Parameter Description Configuration Method
NAT Traversal
Select STUN.
Web user interface
Endpoint
CTP20/CTP18
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.

Yealink CTP18 Specifications

General

Aspect ratio	16:10
Display diagonal	8 \
Display resolution	1280 x 800 pixels
Touchscreen technology	Capacitive
Built-in speaker(s)	No
Ethernet LAN	Yes
Mounting type	Wall/Tabletop
Product color	Black, Grey
RJ-45 ports quantity	1
Cables included	LAN (RJ-45)
Power source type	DC
Power consumption (typical)	7 W

Weight and Dimensions

Depth	100 mm
Width	202 mm
Height	151 mm