Hello,   I've noticed that firmware 11.2.1 (I haven't tested for older versions) violates SIP specifications in an embarrassing way when sending a re-SUBSCRIBE within an existing dialog. More specifically, the phone (a 8851 in this case) doesn't use ...

Hello all, I've been having the following issue with firmware versions 11.x.x for Cisco 8851 3PCC IP Phone. I can pair my bluetooth headset just fine with the 8851, but after a few days the pairing is lost, and I'm unable to reconnect. More specifica...