A new Request for Comments is now available in online RFC libraries.
RFC 9878
Title: Updates to Private Header (P-Header)
Extension Usage in Session Initiation Protocol
(SIP) Requests and Responses
Author: C. Holmberg,
N. Biondic,
G. Salgueiro,
R. Jesske
Status: Informational
Stream: IETF
Date: November 2025
Mailbox: [email protected],
[email protected],
[email protected],
[email protected]
Pages: 9
Obsoletes: RFC 7976
Updates: RFC 7315
I-D Tag: draft-ietf-sipcore-rfc7976bis-04.txt
URL: https://www.rfc-editor.org/info/rfc9878
DOI: 10.17487/RFC9878
The Third Generation Partnership Project (3GPP) has identified cases
where different SIP private header extensions referred to as "P-"
header fields, and defined in RFC 7315, need to be included in SIP
requests and responses where they were not allowed according to RFC
7315. This document updates RFC 7315, in order to allow inclusion of
the affected "P-" header fields in such requests and responses. This
document obsoletes RFC 7976. The changes related to RFC 7976 involve
the inclusion of the P-Visited-Network-ID header field in SIP
responses.
This document also makes updates to RFC 7315 in order to fix
misalignments that occurred when RFC 3455 was obsoleted by RFC 7315.
This document is a product of the Session Initiation Protocol Core Working
Group of the IETF.
INFORMATIONAL: This memo provides information for the Internet community.
It does not specify an Internet standard of any kind. Distribution of
this memo is unlimited.
This announcement is sent to the IETF-Announce and rfc-dist lists.
To subscribe or unsubscribe, see
https://www.ietf.org/mailman/listinfo/ietf-announce
https://mailman.rfc-editor.org/mailman/listinfo/rfc-dist
For searching the RFC series, see https://www.rfc-editor.org/search
For downloading RFCs, see https://www.rfc-editor.org/retrieve/bulk
Requests for special distribution should be addressed to either the
author of the RFC in question, or to [email protected]. Unless
specifically noted otherwise on the RFC itself, all RFCs are for
unlimited distribution.
The RFC Editor Team
_______________________________________________
rfc-dist mailing list -- [email protected]
To unsubscribe send an email to [email protected]
http://www.rfc-editor.org
