Yealink SIP-T21 E2 Administrator's Guide

Configuring Basic Features
537
Parameters
Permitted
Values
Default
None
Phone User Interface:
None
To configure the presentation of the caller identity via web user interface:
1. Click on Account->Advanced.
2. Select the desired account from the pull-down list of Account.
3. Select the desired value from the pull-down list of Caller ID Source.
4. Click Confirm to accept the change.
Connected Line Identification Presentation (COLP)
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.
Note
The following sessions show the enhancements of connected line identification according to
the connected line identification source configured on the IP phones.
If the callee already exists in the local directory, the local contact name assigned to the callee
should be preferentially displayed.

Yealink SIP-T21 E2 Specifications

General

Brand	Yealink
Model	SIP-T21 E2
Category	IP Phone
Language	English