[VoiceOps] SIP options "ping"

[Alex Balashov]

Sipsak has the downside of having extraordinarily, egregiously long 
timeouts in case the endpoint does not respond.  It would block a lot 
of other scheduled checks on a busy Nagios install in unacceptable ways.

The Net::SIP approach is superior, but goddamn if I can ever figure 
out that API from the "documentation."

-- 
Alex Balashov - Principal
Evariste Systems LLC
260 Peachtree Street NW
Suite 2200
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