Hello,<br><br>I've been experiencing a strange problem with 7921 phones and am wondering if anyone has seen these symptoms before. We are running CUCM version 6.1.1(a) and firmware 1.1.1 on the 7921 wireless phones. When a 7921 user is on the phone and a second call comes in and goes to voicemail, the user hears 2 - 3 seconds of dead air at that moment and then the phone reboots. We are able to replicate this consistently. From the event logs in RTMT, I only see the device unregisters with Reason Code 12.<br>
<br>From a wireless perspective, we are using 4402 controllers with version 4.2.112, but it seems unlikely that the controller would send a reboot to the phone. <br><br>Has anyone seen this happen before?<br><br>Thanks,<br>
Brian<br>