"pjsip show contacts" and PJSIP_DIAL_CONTACTS() don't see my contact objects / Cannot receive calls in Asterisk 13.9.1

Asterisk Asterisk Support
1

Hi everyone,

I’m afraid that I need some help with my asterisk server.

The problem is that my asterisk server (v13.9.1) fails to register SIP clients properly. Although each SIP REGISTER request is met with a 200 OK response, no contact object is ever created.

As a result of this, I cannot receive any calls although I’m able to dial out just fine.

After some digging, I found this ticket on the tracker which describes a similar issue where contact objects where actually created but deleted early, causing some calls to fail while others succeeded.

https://issues.asterisk.org/jira/browse/ASTERISK-26007

However, that issue is supposed to be fixed in the version that I’m using.

Does anybody have an idea what’s happening here?

2

What is the console output? Where are you storing things?

3

Unfortunately, I’m not getting any real output on the console.

Even if I set all loglevels to ON, there is still nothing.

The only output I can get is the SIP messages themselves (with pjsip set logger on) but I doubt that this would be useful in this case.

Concerning storage, I found out that my contact objects are stored in astdb under record family “registry/contact”.

“database show” is telling me that my contact objects are actually stored in there. ATM, there are 2 of them.

However, I cannot retrieve these objects with “pjsip show contacts” (nor does PJSIP_DIAL_CONTACTS() work).

4

Gotcha.

If I change the AOR identifier to something that doesn’t start with a +, it suddenly works.

But why does PJSIP dislike + characters?

5

It should be fine with it, unless the AstDB stuff doesn’t like it. I’d suggest filing an issue[1].

[1] https://issues.asterisk.org/jira

6

Gotcha #2.

I found something that might be causing this issue.

In source file asterisk/location.c, function struct ao2_container *ast_sip_location_retrieve_aor_contacts_nolock(const struct ast_sip_aor *aor), line 189, asterisk is using regular expressions to identify AORs.

snprintf(regex, sizeof(regex), “^%s;@”, ast_sorcery_object_get_id(aor));

Since + is a metacharacter in regex that matches the preceding subexpression one or more times, it doesn’t surprise me that a + is causing trouble.

However, that still doesn’t explain why show contacts doesn’t give any results.

Edit: File is asterisk/res/res_pjsip/location.c

7

Gotcha, that’s it.

In order to make a contact show up, I need a contact object AND a matching AOR object.

Due to the regex bug, my contact objects fail to match the AOR and therefore, I can’t see them.

However, if I create an additioal AOR called \+0000, then my missing contact object (which actually belongs to AOR +0000) will show up under AOR \+0000.

I’ll file a bug in a few minutes. Greetings to bobby tables.

Edit: Done. https://issues.asterisk.org/jira/browse/ASTERISK-26151