Hi All, I've been working on a user agent with a remote speaker and microphone and so far I have managed to get the RTP stream working in both directions. It actually works pretty well however I am getting feedback and I realised this doesn't appear to happen on my laptop because PJSIP has the AEC running on the sound card stream. I just wanted to ask if it is possible to use the AEC on the stream providing remote speaker and microphone as well as/rather than on the sound card? Has anyone ever done something like this before? Does anyone have any other ideas about solving this issue? Thank you all for your time, Pierre -- **** Confidentiality statement and Disclaimer *** This message and any attachments are confidential, intended solely for the addresses and may contain legally privileged information. Any unauthorised use or dissemination is prohibited. Electronic transmissions are likely to *be altered*. Neither Faiveley Transport nor any of its subsidiaries or affiliates shall be liable for the electronic transmission if altered, changed or falsified. If you are not one of the addressee(s) (or responsible for delivery of the message to such person) you are not an intended recipient and you are hereby notified that you may not read, use, copy or deliver the message to anyone for any purpose. Instead you should destroy this message [alt. delete this message from your system] and kindly notify the sender by reply mail. Please observe that opinions, conclusions and other information in this message not relating to the official business of my firm shall be understood as neither given nor endorsed by it. Further, electronic transmissions may be susceptible to data corruption, interception and unauthorised amendment, and neither I nor my firm accept liability for any such corruption, interception or amendment or the consequences thereof. *** End of statement **** -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20120913/e9980ec8/attachment-0001.html>