Yealink T27P Administrator's Guide

Administrator’s Guide for SIP-T2_Series_T4_Series IP Phones
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2. Select the desired account from the pull-down list of Account.
3. Click on Advanced.
4. Select the desired value from the pull-down list of the Caller ID Source.
5. Click Confirm to accept the change.
Connected Line Identification Presentation (COLP) allows IP phones to display the
identity of the connected party specified for outgoing calls. IP phones can display the
Dialed Digits, or the identity in a SIP header (Remote-Party-ID or P-Asserted-Identity)
received, or the identity in the From header carried in the UPDATE message sent by the
callee as described in RFC 4916. Connected line identification presentation is also
known as Called line identification presentation. In some cases, the remote party will be
different from the called line identification presentation due to call diversion.
If the callee already exists in the local directory, the local contact name assigned to the
callee should be preferentially displayed.
For more information on connected line identification presentation, refer to Calling and
Connected Line Identification Presentation on Yealink IP Phones , available online:
http://www.yealink.com/DocumentDownload.aspx?CateId=142&flag=142.
Procedure
COLP can be configured only using the configuration files.
Configuration File
<MAC>.cfg
Configure the presentation of
the callee’s identity.
Parameter:
account.X.cp_source

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)