Yealink VCM38 Administrator's Guide

| Configuring the Security Features | 239
Managing the Trusted Certificates List
When the system serves as a TLS client and requests a TLS connection with a server, the system
should verify the server certificate sent by the server to decide whether it is trusted based on the trusted
certificates list.
About this task
The trusted certificates list contains the default and the custom certificates.
• Default Certificates: The system has built-in trusted certificates.
• Custom Certificates: You can upload up to 10 trusted certificates with the size no more than 5M to the
system. The CA certificates supported by the system must be in .pem, .cer, .crt, or .der file format.
Procedure
1. On your web user interface, go to Security > Trusted Certs.
2. Configure and save the following settings:
Parameter Description Configuration Method
Only Accept Trusted
Certificates
Enable or disable the system
only trusting the server
certificates in the trusted
certificates list.
Note: the default value is On.
If it is disabled, the system can
connect to the server no matter
whether the certificate send by
the system is valid or not.
If it is enabled, the system
will authenticate the server
certificate based on the trusted
certificates list. Only when the
authentication succeeds, will the
system trust the server.
If you change this parameter, the
system will reboot to make the
change take effect.
Web user interface
Common Name Validation
Enable or disable the system
to mandatorily validate
the CommonName or
SubjectAltName of the server
certificate sent by the server.
This security verification rules
are compliant with RFC 2818.
Note: the default value is Off.
If you change this parameter, the
system will reboot to make the
change take effect.
Web user interface

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