oh-sipclient: Add Item to report SIP status to server

[florian-h05]

This adds the option to specify a String Item, to which the SIP connection status is sent.
This allows to track the usage of oh-sipclient from rules and scripts.

[relativeci]

#2111 Bundle Size — 10.67MiB (~+0.01%).

545b544(current) vs 146fda4 main#2107(baseline)

Warning

Bundle contains 2 duplicate packages – View duplicate packages

Bundle metrics   2 changes 1 regression

	Current #2111	Baseline #2107
Initial JS	1.88MiB(+0.04%)	1.88MiB
Initial CSS	607.91KiB	607.91KiB
Cache Invalidation	17.58%	17.95%
Chunks	223	223
Assets	246	246
Modules	2888	2888
Duplicate Modules	149	149
Duplicate Code	1.85%	1.85%
Packages	97	97
Duplicate Packages	2	2

Bundle size by type   1 change 1 regression

	Current #2111	Baseline #2107
JS	8.86MiB (~+0.01%)	8.86MiB
CSS	892.63KiB	892.63KiB
Fonts	526.1KiB	526.1KiB
Media	295.6KiB	295.6KiB
IMG	140.74KiB	140.74KiB
HTML	1.24KiB	1.24KiB
Other	871B	871B

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Bundle analysis report Branch florian-h05:sipclient-statusitem Project dashboard

[florian-h05]

@digitaldan WDYT?
I have implemented this for a very special use case: I use oh-sipclient to communicate with my doorbell, and I would like to know whether the doorbell ring gets "answered" either by directly opening the door or talking to the door station. This PR makes it possible to know whether someone started talking to the door station.

[digitaldan]

Seems like a cool feature! One suggestion would be to have the item be able to be configured per browser (so using local storage) like we allow for other SIP configuration options, so add this to the localSettingsPopup part of the widget. I have 5 (sometimes more) tablets that all pop up the SIP widget when a call comes in and i could see wanting to track those separately.

On a bit of a tangent. I have a Freeswitch PBX docker container i run that my SIP devices (like my grand stream gate phone) connect to as well as some external phone numbers. When a call comes in, its responsible for triggering an item update on openHAB which pops up my sip widgets. Freeswitch keeps the incoming call ringing, even though my sip widgets are not registered yet, then when they do pop up and register, it immediately rings them. This is similar to how VOIP apps on mobile devices work, where the PBX sends a push notification that there is a call, which then wakes up the mobile sip app which immediately registers then gets sent the call.

[florian-h05]

Agreed, sounds reasonable.

WDYT about the strings that are sent? Understandable and detailed enough?

[digitaldan]

WDYT about the strings that are sent? Understandable and detailed enough?

Yeah, LGTM!

[florian-h05]

@digitaldan Can you please take a look at it? I have added support for local setting of the call state Item and extended its values to also include the caller ID.

[digitaldan]

LGTM!