[asterisk-bugs] [JIRA] (ASTERISK-30246) pjsip: Allow topology/session refreshes in early media state

[Maximilian Fridrich (JIRA)]

Maximilian Fridrich created ASTERISK-30246:
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             Summary: pjsip: Allow topology/session refreshes in early media state
                 Key: ASTERISK-30246
                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-30246
             Project: Asterisk
          Issue Type: New Feature
      Security Level: None
          Components: Channels/chan_pjsip, Resources/res_pjsip_session
    Affects Versions: 18.14.0, 16.28.0, 19.6.0, 20.0.0
            Reporter: Maximilian Fridrich


When an SDP negotiation has finished during an initial INVITE transaction and the SDP was sent using a reliable 1xx response, session modifications are allowed in the early media state by sending UPDATEs ([RFC 6337|https://datatracker.ietf.org/doc/html/rfc6337] contains many details, especially [section 3.2|https://datatracker.ietf.org/doc/html/rfc6337#section-3.2]).

Asterisk does not allow this yet, but there are use cases in which session modifications in the early media state are necessary.



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