26 Feb
2003
26 Feb
'03
5:18 p.m.
I realize the accounting logging of ACK is only an attempt, but ...
It does seem fairly important in determining when the actual
call started.
Here is some filtered output from the syslog accounting output file:
--- -------- -------- -------- --- ---------- ----------
Call INVITE ACC BYE Length From To
--- -------- -------- -------- --- ---------- ----------
1 18:50:39 18:50:39 18:50:48 9 4695461243 -> 9723236598
2 18:53:19 18:53:19 19:08:46 927 4695461243 -> 9723937976
3 20:14:00 0 4695461246 -> 4695461235
4 20:16:41 20:16:48 7 4695461246 -> 4695461235
5 20:19:09 20:19:17 8 4695461246 -> 4695461235
6 20:30:18 20:30:23 5 4695461235 -> 4695461235
7 20:30:51 20:31:01 10 4695461246 -> 4695461235
8 20:37:14 20:37:17 3 4695461246 -> 4695461235
9 21:02:08 21:03:28 80 4695461235 -> 4695461240
10 21:21:26 21:21:26 21:36:33 907 4695461235 -> 4695461243
11 22:42:03 22:42:03 22:52:23 620 4695461235 -> 4695461235
12 22:59:22 22:59:33 11 4695461246 -> 4695461235
13 23:00:46 23:01:00 14 4695461246 -> 4695461235
14 23:08:11 23:08:21 10 4695461246 -> 4695461235
15 23:19:37 23:19:37 23:19:41 4 4695461235 -> 4695461235
16 23:22:49 23:22:56 7 4695461235 -> 4695461235
17 23:28:55 23:28:55 23:29:07 12 4695461235 -> 4695461243
18 23:29:18 23:29:18 23:42:53 815 4695461235 -> 4695461243
19 09:08:11 09:08:11 09:08:52 41 9725678129 -> 4695461236
20 09:09:50 09:10:38 48 4695461236 -> 99727139968
21 09:11:15 09:12:00 45 4695461236 -> 99727139968
22 09:12:35 09:12:35 09:13:39 64 2143357976 -> 4695461240
23 09:18:57 09:18:57 09:19:29 32 4695461235 -> 9724620762
24 09:23:17 09:24:25 68 4695461235 -> 4695461240
--- -------- -------- -------- --- ---------- ----------
I note the ACK times are all the same as the INVITE times.
Isn't the wrong ACK being recorded? Is this a problem with
my .cfg? A much more useful ACK would be the second one (when the
far end ACKs after the 180 Ringing and 200 OK messages.
A typical call, from UA perspective:
INVITE ->
401 unauth.. <-
ACK -> (evidently, the one being accounted)
INVITE (with cred) ->
100 Trying <-
180 Ringing <-
200 OK <-
ACK -> (the ACK that SHOULD be accounted, IMHO)
...
---greg