This issue originates from this asterisk issue: https://issues.asterisk.org/jira/browse/ASTERISK-24664 ================== While investigating messages.log for my asterisk server; I found multiple occurrences of this pjsip exception. It happens when the sip caller id is non-ascii, like this (first one appears in the log) - ??????? - ???? - ??????? This call is rejected from pjsip. Asterisk produces an error type log message as below: [Jan 6 10:23:39] ERROR[5758] pjsip: sip_transport. Error processing 789 bytes packet from UDP 45.115.149.5:5060 : PJSIP syntax error exception when parsing '' hea der on line 3 col 29: INVITE sip:87640475343804107 at 22.73.22.39 SIP/2.0 Via: SIP/2.0/UDP 45.115.149.5:5060;branch=z9hG4bK01d3b09b6b21b00e From: "???????" <sip:???????@45.115.149.5>;tag=6e1d71e43ae3ba8b To: <sip:87640475343804107 at 22.73.22.39> Call-ID: 043cf6ec0cae62d963616c6c0dc6dd2c at 45.115.149.5 CSeq: 1 INVITE Contact: <sip:???????@45.115.149.5:5060> Allow: INVITE, ACK, CANCEL, BYE, OPTIONS, INFO, UPDATE, PRACK Supported: timer Max-Forwards: 70 User-Agent: SomeSwitch V2.1.2.4 Session-Expires: 600 Content-Length: 222 Content-Type: application/sdp v=0 o=- 46616 46616 IN IP4 73.26.42.78 s=VOS3000 c=IN IP4 73.26.42.78 t=0 0 m=audio 6654 RTP/AVP 18 101 a=rtpmap:18 G729/8000 a=fmtp:18 annexb=no a=rtpmap:101 telephone-event/8000 a=fmtp:101 0-15 a=sendrecv Does PJSIP support non-ascii caller id? -- This e-mail message is intended only for the use of the intended recipient(s). The information contained therein may be confidential or privileged, and its disclosure or reproduction is strictly prohibited. If you are not the intended recipient, please return it immediately to its sender at the above address and destroy it. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20150326/da27b8a6/attachment.html>