[Asterisk-Users] X100P - Busydetect / calls being disconnected - Australia; tip.

[Martin Pycko]

Because of the nature of busydetect algorithm busycount shouldn't be set
to less than 8. It's 10 by default.

Just imagine that you dial a number that is attached to some speed dial
key. It'll surely cause hangup if busydetect < 8.

Martin

On Sat, 27 Sep 2003, Shaun Ewing wrote:

> Hi All,
>
> This isn't really a question, but it's an issue I experienced that was
> driving me crazy for a few days, so I thought it might be good for the
> archives.
>
> Basically what was happening was everytime a particular customer called
> (long distance), the line would disconnect immediately after answering.
>
> I thought it might have been the phone, so I swapped the phone with
> another - still happened.
>
> I thought that there was some remote possibility that the phone company was
> reversing the line on answering long distance calls, so I switched to fxs_ls
> instead of fxs_ks - no difference.
>
> Various things were tried to no avail, until I made a long distance call
> over a different carrier to our usual carrier (we use Optus, I made the call
> over Telstra). When the remote end answered, my end disconnected.
>
> What was happening was, when the call is answered, 5 quick chirps are sent
> down the line. However, because of the bug in the Cisco 7960 causing the
> first 1/2 a second or so of a conversation to be cut off - I didn't hear
> these chirps and as such I didn't think of the next bit:
>
> Basically, because I had busycount set to 3 and busydetect set to yes, these
> chirps were being detected by the busydetect function and causing the call
> to be disconnected. I raised the busycount to something safe (8) and this no
> longer happened.
>
> This has me worried for a while, especially as I'd just disconnected the old
> PBX a few days ago and spent a nice amount of money on Cisco 7960 and 7940
> IP phones (and will probably be ordering more in the near future).
>
> Anyway, I'm pleased to report that everything is now working perfectly and
> I'm extremely happy with Asterisk. I'd contribute, but alas I'm not much of
> a C programmer.
>
> -Shaun
>
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