Yealink T27P Administrator's Guide

Configuring Audio Features
489
Procedure
CNG can be configured using the configuration files or locally.
Configuration File
<y0000000000xx>.cfg
Configure CNG.
Parameter:
voice.cng
Local
Web User Interface
Configure CNG.
Navigate to:
http://<phoneIPAddress>/
servlet?p=settings-voice&
q=load
Details of the Configuration Parameter:
Parameter
Permitted Values
Default
voice.cng
0 or 1
1
Description:
Enables or disables CNG (Comfortable Noise Generator) feature on the IP phone.
0-Disabled
1-Enabled
Web User Interface:
Settings->Voice->Echo Cancellation->CNG
Phone User Interface:
None
To configure CNG via web user interface:
1. Click on Settings->Voice.

Yealink T27P Specifications

General

Wall Mountable	Yes
Local Phonebook	1000 entries
Bluetooth	No
Wi-Fi	No
Gigabit Ethernet	No
Display	3.66" 240x120 pixel graphical LCD with backlight
Audio Features	HD voice, Full-duplex speakerphone
Network	Dual-port 10/100 Ethernet switch
Protocols	SIP v1 (RFC2543), v2 (RFC3261)
Power	IEEE 802.3af PoE
Connectivity	2 x RJ45 10/100M Ethernet ports
Voice Codecs	G.711(A/μ), G.722, G.723, G.729AB, G.726
EHS	Supports EHS with Plantronics headsets
Headset Port	Yes
Power Adapter	5V DC (optional)