Yealink Yealink SIP-T42G, Руководство администратора

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Administrator’s Guide for SIP-T2 Series/T19(P) E2/T4 Series/CP860 IP Phones
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Calling Line Identification Presentation (CLIP) allows IP phones to display the caller
identity, derived from a SIP header contained in the INVITE message when receiving an
incoming call. IP phones support deriving caller identity from three types of SIP header:
From, P-Asserted-Identity (PAI) and Remote-Party-ID (RPID). Identity presentation is
based on the identity in the relevant SIP header.
Note
The following sessions show the enhancements of calling line identification presentation
according to the calling line identification source configured on the IP phones.
1) The IP phone checks Privacy: id header preferentially, if there is a Privacy: id in the
INVITE request, the calling line identification information will be hidden and the IP
phone LCD screen presents anonymous.
2) If there is not any Privacy: id header in the INVITE request, the IP phone checks and
presents the caller identification from the P-Preferred-Identity header.
3) If there is not P-Preferred-Identity header in the INVITE request, the IP phone
presents the caller identification derived from the FROM header.
1) The IP phone checks Privacy: id header preferentially, if there is a Privacy: id in the
INVITE request, the caller identification information will be hidden and the IP phone
LCD screen presents anonymous.
2) If there is not any Privacy: id header in the INVITE request, the IP phone checks and
presents the caller identification from the P-Preferred-Identity header.
3) If there is not P-Preferred-Identity header in the INVITE request, the IP phone checks
and presents the caller identification from the P-Asserted-Identity header.
1) The IP phone checks Privacy: id header preferentially, if there is a Privacy: id in the
INVITE request, the caller identification information will be hidden and the IP phone
LCD screen presents anonymous.
2) If there is not any Privacy: id header in the INVITE request, the IP phone checks and
presents the caller identification from the P-Preferred-Identity header.
3) If there is not P-Preferred-Identity header in the INVITE request, the IP phone checks
If the caller already exists in the local directory, the local contact name assigned to the
caller should be preferentially displayed and stored in the call log.