service issue

[nir grinberg]

one of the servers I manage has develop a service-blinking issue.
The server is running Asterisk, Trixbox 2.6.  Lately the service has
started to "Blink" from time to time.  with no apparent reason
Asterisk service will stop.  amportal / asterisk service start will
bring all back to life.  I looked on the log file and saw an error
relating to one of the server interfaces.  this might be the issue,
but i am not sure.
As you can suspect this is very annoying to me and customer and i am
trying to figure what is going on.

is there a tool allowing for remote service monitoring on VoIP
services?  (maybe something simple that create a SIP request every so
often from a remote server, keeping logs and creating alerts?)

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Regards,

Nir Grinberg
I.T.C. IP Technologies Ltd.
nir at IsraelNumber.com
www.IsraelNumber.com
972.3.9707000