I just upgraded to the new UC520 support pack (7.0.4) a couple days ago. Now we seem to be getting random stuck DNs.
MCC-UC520#sh voice call sum | inc 50/0/10
50/0/10 .1 - - - EFXS_WAIT_RELEASE_REQ
50/0/10 .2 - - - EFXS_ONHOOK
MCC-UC520#sh ephone-dn sum | inc 50/0/10
50/0/10 1 IDLE NONE - - - EFXS_WAIT_RELEASE_REQ
50/0/10 2 IDLE NONE - - - EFXS_ONHOOK
This DN cannot get dialtone. I am trying to find a way to clear it, but haven't yet. I'm probably going to have to reload CME to get it back up.
The stuck DN doesnt show up as a call, so i can't clear it:
MCC-UC520#sh voice call status
CallID CID ccVdb Port DSP/Ch Called # Codec Dial-peers
0x1 11E0 0x86A5F1FC 50/0/9.0 ABC g711ulaw 20005/5
0x2 11E0 0x86226660 0/4/0 0/1:1 *ABC g711ulaw 5/20005
1 active call found
We are using 7965s on SCCP45.8-4-2S.