Add SIP Request Ping and Registration Options Feature

[msaleemCinnova]

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Description

@louislam ,
This SIP module is able to process both a failure to receive OPTIONS requests, as well as a failure to REGISTER as a valid endpoint. It supports UDP, TCP, and TLS on a user-selectable port (not just fixed to 5060/5061), and supports either No Authentication or Basic Authentication. The monitor's history shows up/down events, the reason behind them, and response latency. Additionally, there is an option to process 503 responses from the SIP server (or monitored SIP device), as "Maintenance", meaning if a 503 is received, the monitor is immediately placed into an adhoc "maintenance" rather than shown as down (upon restore of normal SIP service, the maintenance flag is removed from the monitor).

Could we talk about it further? it will be a great addition.
Fixes #(issue)

Type of change

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• User interface (UI)
• New feature (non-breaking change which adds functionality)
• This change requires a documentation update

Checklist

• My code follows the style guidelines of this project
• I ran ESLint and other linters for modified files
• I have performed a self-review of my own code and tested it
• I have commented my code, particularly in hard-to-understand areas (including JSDoc for methods)
• My changes generate no new warnings
• My code needed automated testing. I have added them (this is optional task)

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[msaleemCinnova]

@louislam , @thomasleveil , Lets give it a try . I'm open for discussion.

[msaleemCinnova]

@CommanderStorm ,
My request to become contributor.

[edman80]

I did not incorporate SIP Register requests because it is irrelevant for my use cases, but maybe extend on my PR (which has had no response) #5362 ?