Yealink VCM38 Administrator's Guide

| Configuring the Security Features | 240
Parameter Description Configuration Method
CA Certificates
Specify the certificate type in the
Trusted Certificates list for the
system to authenticate for the
TLS connection.
• Default Certificates—the
device authenticates whether
the server is reliable via the
built-in CA certificates.
• Custom Certificates—the
device authenticates whether
the server is reliable via the
uploaded CA certificates.
• All Certificates—the device
authenticates whether the
server is reliable via both the
built-in and the uploaded CA
certificates.
Note: the default value is
Default Certificates.
If you change this parameter, the
system will reboot to make the
change take effect.
Web user interface
Upload Trusted Certificate File
Upload the custom CA certificate
for the device.
Note: the certificate must be
in .pem, .der, .crt, or .cer file
format. You can upload up to 10
CA certificates.
Web user interface
• Default Certificates List
Default Certificates List
The following introduces 204 most common used CA Certificates built in Yealink video conferencing
system.
• Baltimore CyberTrust Root
• ISRG Root X1
• GlobalSign
• Cybertrust Global Root
• Wells Fargo Root Certificate Authority
• Thawte Personal Freemail CA
• Thawte Server CA
• Thawte Premium Server CA
• QuoVadis Root Certification Authority
• Baltimore CyberTrust Root
• TDC Internet Root CA
• Sonera Class2 CA
• Root CA Generalitat Valenciana
• DST Root CA X3

Yealink VCM38 Specifications

General

Type	Conference microphone
Noise reduction	Yes
Microphone frequency	100 - 16000 Hz
Microphone sensitivity	-45 dB
Microphone pick-up range	6 m
Number of microphone arrays	8
Maximum sound pressure level (1kHz)	100 dB
Device interface	RJ-45
Connectivity technology	Wired
Maximum operating distance	40 m
Mounting type	Ceiling
Product color	Silver
Operating temperature (T-T)	0 - 40 °C
Operating relative humidity (H-H)	5 - 90 %
Number of products included	1 pc(s)
Harmonized System (HS) code	85181000
Power source	DC/PoE
Sustainability certificates	CE, Federal Communications Commission (FCC), REACH, RoHS

Weight and Dimensions

Width	127.3 mm
Height	66.3 mm