I'm writing an application using PJSIP. We have a "walkie-talkie" paradigm, where the user presses a button to talk and releases the button to stop transmitting. I mute the call initially, unmute it when the user presses the button, and mute it again when they release the button. About as often as not, when the user releases the button and the call is muted, PJSIP keeps sending mechanical noise (a buzzing sound, not background noise). I have confirmed this with Wireshark. The only way to stop it is to press and release the button again, and hope it stops this time. Has anyone heard of this problem or have any idea how to tackle it? ___________________________________________________ Mark Woodard Mutualink, Inc. 313 S Jupiter Allen, TX 75002 Toll Free: (866) 957-5465 Ext: 508 E-Mail: mwoodard@mutualink.net <employeer@mutualink.net> Web: www.mutualink.net *Certified by the Department of Homeland Security SAFETY Act for Interoperable Communications* The information in this email, and subsequent attachments, may contain confidential information that is intended solely for the attention and use of the named addressee(s). This message or any part thereof must not be disclosed, copied, distributed or retained by any person without authorization from the addressee. Visit Mutualink at the following social media sites: <http://www.twitter.com/MutualinkInc> <http://www.facebook.com/Mutualink> <http://www.linkedin.com/company/mutualink> The information in this email, and subsequent attachments, may contain confidential information that is intended solely for the attention and use of the named addressee(s). This message or any part thereof must not be disclosed, copied, distributed or retained by any person without authorization from the addressee.