How to enable 400 Bad Request with syntax errors

Asterisk Asterisk SIP
1

I’m trying to find out if there is a setting that can be enabled to send a 400 Bad Request error when Asterisk/PJSIP receives a request with syntax errors.

For example, this INVITE has an Unterminated Quoted String in Display Name (To: "Mr. Nobody <sip:nobody…)

To: "Mr. Nobody sip:x.x.x.x:5060

The Asterisk logs show: “PJSIP syntax error exception when parsing ‘To’ header on line 4 col 5”, but the client doesn’t receive a 400 Bad Request error back. It just appears to not respond at all.

This is on FreePBX 15.0.29, and Asterisk 16.17.0

Is there a setting I can enable to have the server respond with a 400 Bad Request?

2

No, there is no setting. That happens at the low level PJSIP parsing. If that fails because it violates the specifications, then the message is dropped.

3

That makes sense. Thank you! :slight_smile:

4

This topic was automatically closed 30 days after the last reply. New replies are no longer allowed.