Sip message, coming from?

[AWS2P]

Hi ,
since two days i've got in server log these sip messages but i don't understand what is the origin of messages. Can it be result of hacking attempt ?
My 3cx is hosted on amazon lightsail, only one SBC linked with 5090 port.
Thanks for help if you have any idea on what happens.

05/03/2019 00:48:20 - Exception: SipMessage::Exception Missing header Contact @ SipMessage.cxx:1393
05/03/2019 00:47:52 - Exception: SipMessage::Exception Missing header Contact @ SipMessage.cxx:1393
05/03/2019 00:47:39 - Exception: SipMessage::Exception Missing header Contact @ SipMessage.cxx:1393
05/03/2019 00:47:30 - Exception: SipMessage::Exception Missing header Contact @ SipMessage.cxx:1393
05/03/2019 00:47:11 - Exception: SipMessage::Exception Missing header Contact @ SipMessage.cxx:1393
05/03/2019 00:47:02 - Exception: SipMessage::Exception Missing header Contact @ SipMessage.cxx:1393
05/03/2019 00:46:52 - Exception: SipMessage::Exception Missing header Contact @ SipMessage.cxx:1393
04/03/2019 02:39:19 - Exception: SipMessage::Exception Missing header Contact @ SipMessage.cxx:1393
04/03/2019 02:38:19 - Exception: SipMessage::Exception Missing header Contact @ SipMessage.cxx:1393
04/03/2019 02:37:20 - Exception: SipMessage::Exception Missing header Contact @ SipMessage.cxx:1393
04/03/2019 02:36:19 - Exception: SipMessage::Exception Missing header Contact @ SipMessage.cxx:1393
04/03/2019 02:35:19 - Exception: SipMessage::Exception Missing header Contact @ SipMessage.cxx:1393
04/03/2019 00:55:37 - Exception: SipMessage::Exception Missing header Contact @ SipMessage.cxx:1393
04/03/2019 00:54:38 - Exception: SipMessage::Exception Missing header Contact @ SipMessage.cxx:1393
04/03/2019 00:53:38 - Exception: SipMessage::Exception Missing header Contact @ SipMessage.cxx:1393
04/03/2019 00:53:23 - Exception: SipMessage::Exception Missing header Contact @ SipMessage.cxx:1393
04/03/2019 00:52:38 - Exception: SipMessage::Exception Missing header Contact @ SipMessage.cxx:1393
04/03/2019 00:52:25 - Exception: SipMessage::Exception Missing header Contact @ SipMessage.cxx:1393
04/03/2019 00:52:23 - Exception: SipMessage::Exception Missing header Contact @ SipMessage.cxx:1393
04/03/2019 00:52:09 - Exception: SipMessage::Exception Missing header Contact @ SipMessage.cxx:1393
04/03/2019 00:52:06 - Exception: SipMessage::Exception Missing header Contact @ SipMessage.cxx:1393
04/03/2019 00:51:54 - Exception: SipMessage::Exception Missing header Contact @ SipMessage.cxx:1393

 

[leejor]

This has happened to others as well...
https://www.3cx.com/community/threads/strange-messages-after-update-to-15-5-sp2.52267/

 

[AWS2P]

Hi Leejor,
Thanks for answer, Yiannish from 3cx said to others with same problem they might have unsupported phones,

my 3cx is cloud hosted on amazon lightsail and only one SBC 5090 port RPi based connected to.

Behind SBC desktop supported Snom phones, 720, D710 , Yealink DECT base w60B, snom M325 DECT.
All my phones are supported my trunk provider is also supported as OPENIP (french provider)

 

[YiannisH_3CX]

Hello @aws2p

Since the last report of this we have observed that these messages are a result of a uaCSTA message from Snom devices that does not contain a contact header. We are working with Snom on resolving this but for the time being you can safely ignore it as it does not cause any issues to the functionality of the phones or the system.

 

[AWS2P]

Hi ,
Thanks Yiannish for extended informations, on my side see the list of connected phones with their firmwares, today updated Snom M325 to latest 410B4 for M300 base and 410B3 for M25 handset