Yealink SIP-T54S Administrator's Manual page 564

Administrator's Guide for SIP-T2 Series/T19(P) E2/T4 Series/T5 Series/CP860/CP920 IP Phones
Connected Line Identification source = PAI-RPID
The IP phone checks Privacy: id header preferentially, if there is a Privacy: id in the 18X or
1)
200OK response, the connected line identification information will be hidden and the IP
phone LCD screen presents anonymous.
If there is not any Privacy: id header in the 18X or 200OK response, the IP phone checks
2)
and presents the connected line identification from the P-Asserted-Identity header.
If there is not P-Asserted-Identity header in the I8X or 200OK response, the IP phone
3)
presents the connected line identification from the Remote-Party-ID header. If no, the IP
phone presents the connected line identification according to the dialed digits.
Connected Line Identification source = Dialed digits
Yealink IP phones present the connected line identification according to the dialed digits.
Connected Line Identification source = RFC4916
Yealink IP phones support to present the connected line identification from UPDATE message
following the RFC
The IP phone receives an UPDATE message during a call, the connected line identification
1)
on the LCD screen should be refreshed according the FROM SIP carried in the UPDATE
message.
For more information on connected line identification presentation, refer to
Connected Line Identification Presentation on Yealink IP Phones
Procedure
COLP can be configured only using the configuration files.
Central Provisioning
(Configuration File)
Details of the Configuration Parameters:
account.X.cp_source
Description:
Configures the presentation of the callee's identity for account X.
538
4916.
<MAC>.cfg
Parameters
Calling and
.
Configure the presentation of the
callee's identity.
Parameter:
account.X.cp_source
Specify whether to process
Privacy header field.
Parameter:
account.X.cid_source_privacy
Permitted Values
0, 1 or 2
Default
0