14 Apr
2005
14 Apr
'05
11:29 p.m.
Hi Brian!
Brian McCrary wrote:
Hello,
My routing plans are pretty simple, when a number comes into SER,
see if it it's a registered SIP phone, if so send the call to it, and
if not, then authenticate the user, and send it to the PSTN gateway.
You should authenticate all calls from local users (user which REGISTERs
with your SIP proxy). And only these users are allowed to access the PSTN.
I thought this could easily be solved by having a
lookup("location") as
the first part of my routing. However, I'm not really sure what lookup
looks up. I assume it's the user being dialed, such as if a call comes
in wanting sip:1234567890@x.x.x.x, lookup would look into the database
and see user "1234567890" matches a registered user, and go from there.
Yes, that is the it goes. Of course lookup("location") can only find
something, if there are registered users - you have to save the location
using save("location") for REGISTER requests.
Note: depeding on the use_domain setting, lookup also compares the
domain part of the SIP URI.
However, using lookup never returns a match, thus the
call goes into a
loop since it's next stop is the PSTN gateway. I can see the phone has
registered by running serctl ul show.
Here's part of my routing I tried using, I may be incorrect in using
t_relay, but right now lookup is never true
It looks fine. Probably you have problems with matching domains. Verfiy
the domain of the registered user with serctl and compare it to the
domain in the INVITE request.
regards,
klaus
if (method=="INVITE") {
if (lookup("location")) {
log("LOG: SIP Phone found\n");
t_relay();
break;
} else if (uri=~"sip:[0-9]+@.*") {
if (!is_user_in("credentials", "local")) {
sl_send_reply("403", "Forbidden");
break;
};
rewritehostport("10.0.0.4:5060"); # PSTN GW
Brian
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