Yealink VCM38 Administrator's Guide

| Configuring the Security Features | 236
2. Configure and save the following settings:
Parameter Description Configuration Method
Accessories Join
Collaboration Confirmation
Enable or disable the
authentication before the
wirelessly connected WPP20/
the touch panel receiving
collaboration data.
Note: the default value is On.
If you change this parameter, the
system will reboot to make the
change take effect.
Web user interface
Configuring the Auto Logout Time
The system will log out of the web user interface automatically after being inactive for a period of time. You
need to re-enter the login credentials to login. You can change the auto logo time.
Procedure
1. On your web user interface, go to Setting > General > Basic > ReLogOffTime(1-1000min).
2. Configure and save the following settings:
Parameter Description Configuration Method
ReLogOffTime (1-1000min)
Specify the inactive time
(minutes) before the system logs
out of the web user interface
automatically.
Default: 5 minute.
Web user interface
Transport Layer Security (TLS)
Transport Layer Protocol (TLS) is a commonly used protocol for ensuring communications privacy and
managing the security of the message transmission. When secured by the TLS protocol, the device can
transmit the data and communicate safely.
The TLS protocol includes two protocol groups: the TLS handshake protocol and the TLS record protocol.
The TLS handshake protocol allows the server and the client to authenticate with each other before
negotiating about the data, the encryption algorithms and the encrypted keys. The TLS Record Protocol
completes the actual data transmission and ensures the data integrity and confidentiality. The TLS protocol
uses an asymmetric encryption algorithm to exchange keys, a symmetric encryption algorithm to ensure
data confidentiality, and the MAC algorithms to ensure data integrity.
• Supported Cipher Suites
• TLS Transport Protocol
• Managing the Trusted Certificates List
• Managing the Server Certificates
• Secure Real-Time Transport Protocol (SRTP)
• H.235 Encryption
• Defending against Attacks

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