Anselm Martin Hoffmeister wrote:
Am Mittwoch, den 18.04.2007, 13:18 +0200 schrieb Knud Müller:
Dinesh Nair wrote:
On Wed, 18 Apr 2007 09:04:22 +0200, Knud Müller wrote:
I
think it can be done by using the dialplan and the database to store the
statistical information but maybe there is an easier way that integrates
better with asterisk!?
i dont think you'd even need a database with statistics. just have all
calls sent to provider A with an automatic failover to provider B if the
call can't be completed through A. you'd need to go look at the DIALSTATUS
variable for that.
The disadvantage of that solution is, that I'll always try to make a
connection with a provider for that I know by experience it wouldn't
work. In the failover case the time between starting to dial and the
first ring gets longer. If I know that Provider A fails 60% of Calls
then I don't need to start with a but can start with b directly.
Hi Knud,
I think what you want is a combination of both.
If indeed DIALSTATUS reveals that provider A is having his "five
minutes" (again), the first call that notices this could set a database
flag, say, DB(a-is-crappy) to the current time value.
All calls could, before trying provider A, retrieve this value - if the
last "crap" moment was less than 300 seconds ago, just skip A and go for
B immediately. This way, no more than one call per 300 seconds should be
delayed - except of course, when those 300 timed out and two outgoing
calls start before any of those returns the bad DIALSTATUS. Anyway, they
will block the provider A again if he continues having "moments", but
will allow using A as long as that works fine.
You should take extra care to distinguish DIALSTATUS cases; a call that
could not be terminated because the number was invalid should better not
block provider A if this can be distinguished.
Anselm('s 2 cent)
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Yeah,
I think that would be a solution. I'm a little confused. It seems like
I'm the first one with such a demand? I'd expected that there is
something out of the box as asterisk has for nearly every problem
something someone already solved....
When I made it I'll post it...
Knud
--
Knud A. Müller
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