Thanks for help, I confirm, with Freeswitch 1.10 + Debian 10, the WebRTC RTP encryption is DTLSv1.2 Best regards. Remi Marand. De : FreeSWITCH-users <freeswitch-users-bounces@lists.freeswitch.org> De la part de Vallimamod Abdullah Envoyé : vendredi 28 février 2020 16:31 À : FreeSWITCH Users Help Objet : Re: [Freeswitch-users] Google Chrome Version 81. Hi, Current stable version of freeswitch is 1.10 (https://github.com/signalwire/freeswitch/tree/v1.10) on Debian 10. You should check with this version. Best Regards, -- Vallimamod Abdullah SIP Solutions vma@sip.solutions<mailto:vma@sip.solutions> linkedin.com/in/vallimamod<http://linkedin.com/in/vallimamod> . On 24 Feb 2020, at 16:09, MARAND, Remi <remi.marand@odigo.com<mailto:remi.marand@odigo.com>> wrote: We use Freeswitch in the case of a SIP to WebRTC application and it is a solid and reliable solution. When we test calls with the sipjs.js library (V0.15.10) and Freeswitch (FreeSWITCH Version 1.8.5-6-31281a0bf1~64bit (-6-31281a0bf1 64bit) + Debian 9, with the beta version of Chrome, Version 81.0.4044.17 (Official Build) beta (64-bit), we observe a notification on the javascript console : “[Deprecation] Your partner is negotiating an obsolete (D)TLS version. Support for this will be removed in M81, around March 2020. Please check with your partner to have this fixed. » The Wireshark trace shows that the DTLS-SRTP exchange is done with DTLSv1.0. What would be the version update to do on the Freeswitch side (or Debian) to avoid this deprecation ? Is there a configuration to do in our current version? Best regards. Rémi Marand Product Owner | Marketing & Product Odigo France | Issy les Moulineaux Tel.: +33 1 46 84 12 77 / +33 6 87 72 53 25. www.odigo.com<http://www.odigo.com/> This message contains information that may be privileged or confidential and is the property of the Capgemini Group. It is intended only for the person to whom it is addressed. If you are not the intended recipient, you are not authorized to read, print, retain, copy, disseminate, distribute, or use this message or any part thereof. If you receive this message in error, please notify the sender immediately and delete all copies of this message. _________________________________________________________________________ The FreeSWITCH project is sponsored by SignalWire https://signalwire.com<https://signalwire.com/> Enhance your FreeSWITCH install with disruptive priced SMS and PSTN services. Build your next product on our scalable cloud platform. Join our online community to chat in real time https://signalwire.community<https://signalwire.community/> Professional FreeSWITCH Services sales@freeswitch.com<mailto:sales@freeswitch.com> https://freeswitch.com<https://freeswitch.com/> Official FreeSWITCH Sites https://freeswitch.com/oss https://freeswitch.org/confluence https://cluecon.com<https://cluecon.com/> FreeSWITCH-users mailing list FreeSWITCH-users@lists.freeswitch.org<mailto:FreeSWITCH-users@lists.freeswitch.org> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users https://freeswitch.com<https://freeswitch.com/> Bien cordialement, -- Vallimamod Abdullah SIP Solutions Conseil & Développement de plateformes et services VOIP vma@sip.solutions<mailto:vma@sip.solutions> +33 6 62 60 68 97 linkedin.com/in/vallimamod<http://linkedin.com/in/vallimamod> .