Jabber 12.9.4 on Windows. I have users with this issue as well. Comes and goes. Today, a lot of complaints about it. Happens not just for CSF devices but also users purely using Jabber for CTI deskphone control. Obviously this is a thing, I would ...
I wanted to add, there is a Cisco bug CSCvn43335 related to this. In summary, if the TLSv1.2 GCM ciphers are enabled in an ASA, the 8800 series phones will make a Parent Connection with them, and then the DTLS connection will fail to negotiate. You...
Unplug any PoE Ethernet cable or power supplyWith the phone completely powered off, press and hold the # buttonWhile still depressing the # button, connect power brick or PoE EthernetThe two top LEDs will be amberThe mute light will stay red
Immediat...
Confirmed with multiple 9971 of various V01 through V12 -
to clarify on point #2 above, release the # when the mute light turns red
on point #3, immediately type the sequence without any errors as soon as you've left go of the # key. The mute light ...
