Yealink T27P Administrator's Guide

Administrator’s Guide for SIP-T2_Series_T4_Series IP Phones
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Hotline is a point-to-point communication link in which a call is automatically directed to
the preset hotline number. The IP phone automatically dials out the hotline number using
the first available line after a specified time interval when off-hook. IP phones only
support one hotline number.
Procedure
Hotline can be configured using the configuration files or locally.
Configuration File
<y0000000000xx>.cfg
Configure the hotline number.
Parameter:
features.hotline_number
Specify the time (in seconds) the
IP phone waits before
automatically dialing out the
hotline number.
Parameter:
features.hotline_delay
Local
Web User Interface
Configure the hotline number.
Specify the time (in seconds) the
IP phone waits before
automatically dial out the hotline
number.
Navigate to:
http://<phoneIPAddress>/servlet
?p=features-general&q=load
Phone User Interface
Configure the hotline number.
Specify the time (in seconds) the
IP phone waits before
automatically dialing out the
hotline number.
Details of Configuration Parameters:
Parameter
Permitted Values
Default
features.hotline_number
String within 32 characters
Blank
Description:
Configures the hotline number that the IP phone automatically dials out when lifting
the handset, pressing the speakerphone key or the line key. Leaving it blank disables

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)