Yealink T27P Administrator's Guide

Configuring Basic Features
195
Procedure
180 ring workaround can be configured using the configuration files or locally.
Configuration File
<y0000000000xx>.cfg
Configure 180 ring workaround.
Parameter:
phone_setting.is_deal180
Local
Web User Interface
Configur 180 ring workaround.
Navigate to:
http://<phoneIPAddress>/servlet
?p=features-general&q=load
Details of the Configuration Parameter:
Parameter
Permitted Values
Default
phone_setting.is_deal180
0 or 1
1
Description:
Enables or disables the IP phone to deal with the 180 SIP message received after the
183 SIP message.
0-Disabled
1-Enabled
If it is set to 1 (Enabled), the IP phone will resume and play the local ringback tone
upon a subsequent 180 message received.
Web User Interface:
Features->General Information->180 Ring Workaround
Phone User Interface:
None
To configure 180 ring workaround via web user interface:
1. Click on Features->General Information.

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)