Module packages 

The two event packages that report state sipx already keeps (RFC 4235, RFC 3680).

Dialogs and registrations. Both come first among packages for the same reason: sipx has this state already — a dialog store and a registration lease — so they exercise crate::subscribe without also needing a state model of their own. Presence does need one, which is why it is a separate story.

Together they are what a busy-lamp field on a desk phone subscribes to: dialog says whether a line is ringing or in a call, reg says whether the phone is registered at all. Supported (S-35): sipx_call::Notifier selects these package documents through the live endpoint dispatcher. Breaking changes receive migration guidance while sipx remains pre-1.0.

Structs

Contact

One registered contact, as a watcher sees it.

Dialog

One dialog, as a watcher sees it.

DialogWatch

The dialog event package (RFC 4235).

RegistrationWatch

The reg event package (RFC 3680).

Enums

ContactEvent

What happened to a registered contact (RFC 3680 §5.1).

DialogState

Where a dialog has got to (RFC 4235 §3.7.1).

Direction

Which side started the dialog (RFC 4235 §4.1).

Constants

DIALOG_INFO_TYPE

The MIME type a dialog notification carries (RFC 4235 §4).

REGINFO_TYPE

The MIME type a reg notification carries (RFC 3680 §4).