Ramin,
Search the archives for serialize_branches(), next_branch(), etc..
First, I think you want to do an enum lookup before the t_relay().
With any luck, the result can be serialized using serialize_branches(),
I haven't tried this, but it makes sense. Then you set t_on_failure(1) to
catch the subsequent t_relay() failure. Finally, you need to write
failure function to load the next branch (if any) with
next_branches(), set another
on failure, then t_relay().
I looked around in the archives, there are examples with serial/next
with redirect,
but I didn't see any with srv records...should work though.
-g
On 9/21/06, Ramin Dousti <[EMAIL PROTECTED]> wrote:
On 9/21/06, Steve Blair <[EMAIL PROTECTED]> wrote:
>
Hi Steve,
> In the proxy you can check the status of the t_relay and take corrective
> action based on the result. Something like "if (t_check_status("403"))
> ... do something... " should work. What action you take will depend upon
> the desired outcome. You could send the call to voicemail, a greeting
> server, a different gateway, etc.
>
Yes, that's exactly what I'm looking for. But there are some problems I'm
facing, which most probably is due to my own lack of understanding about
the available knobs:
1- When t-relay() return, the proxy already send the failure notice to
the client. This is not what I want, the "corrective action" must be
transparant
to the user.
2- I have two SRV's with the same weight, I do not see any kind of round-robin.
The request goes to only one of them.
Here is the (probably faulty) config:
route {
...
rewriteport ("");
#t_on_failure("1");
xlog("L_INFO", "Got the call\n");
if (! t_relay()) {
if (t_check_status("(403|487)|(408|477)")) {
xlog("L_ERR", "initial call failed\n");
if (t_newtran()) {
xlog("L_ERR", "Let's try again\n");
t_relay();
}
}
}
...
}
Can you help?
Ramin
> In the phones you can use SRV records to present a weighted list of
> proxy servers. The phone would register to a domain name which is a SRV
> record. This record resolves into the A records for each viable proxy.
> You could weight and prioritize the A records thereby giving the phones
> an ordered list of servers to try.
>
> -Steve
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Greg Fausak
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