Eric "ManxPower" Wieling wrote:
Alistair Cunningham wrote:
Many enterprise products have an option to quiesce a trunk. Any
inactive B channels are disabled immediately, and any active channels
are disabled as soon as the call on them finishes. When all B channels
on a trunk are disabled, the trunk is too. NFAS groups work similarly.
When I was an engineer working mostly with IBM Websphere Voice
Response, and we wanted to take a machine down, we would quiesce the
trunk(s) as above, then wait until only 1 or 2 calls were left, then
cut off these remaining calls. We felt this was the best compromise
between cutting off as few callers as possible, and minimising the
time the system was unavailable to new callers.
A facility to do this in Asterisk would be most welcome.
"stop gracefully" does something similar.
It's similar, but not quite the same in a clustered environment. When
the B channels are busied out, this tells the upstream switch to route
calls to another machine in the cluster. Stop gracefully will still
accept calls from the switch (I believe, it's been a while since I
tested this).
Alistair Cunningham
+1 888 468 3111
+44 20 799 39 799
sip:[EMAIL PROTECTED]
http://integrics.com/
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