Configuring Advanced Features407Parameters Permitted Values Default1-EnabledIf it is set to 0 (Disabled), the IP phone doesn’t process P-Preferred-Identity (PPI) header.If it is set to 1 (Enabled), the IP phone presents the caller identification from theP-Asserted-Identity (PPI) header.X ranges from 1 to 16 (for SIP-T58V/T58A/T56A)X is equal to 1 (for CP960)Web User Interface:NonePhone User Interface:NoneTo 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 theconnected party specified for outgoing calls. IP phones can display the Dialed Digits, or theidentity in a SIP header (Remote-Party-ID or P-Asserted-Identity) received, or the identity in theFrom header carried in the UPDATE message sent by the callee as described in RFC 4916.
