Calling all voip and networking Experts
I got a huge issue with my Cucm pls look at the attachment to see the design .
The issue is that I got 46 IP communicators (soft phones) on the LAN (on a different vlan from the CUCM –vlan 70) that getting disconnected , unregistered , and goes to SRST mode .
All the PCs with the IP communicator connected to high end switch 2960S with lan Base , a really expensive switch that connected to 4500 (ios - 4500e-lanbasek9-mz.122-54.
SG) with lag (2 giga copper) .
I did the "sh int counters error " on the 2960s and everything looks great , no errors , also on the 4500 .
The error the I receiving from the voice gateway 2900 router with PRI and SRST configs–
Sep 26 17:16:45.827: %IPPHONE-6-REG_ALARM: 14: Name=001CC42F9658 Load= 188.8.131.52 Last=UCM-closed-TCP
Erros on the CUCM -
16:09:43.186 |EndPointUnregistered - An endpoint has unregistered Device name:001F29AE4D77 Device IP address:10.10.70.19 Protocol:SCCP Device type:30016 Device description:GLB-AM-04 Reason Code:13 IPAddressAttributes:3 App ID:Cisco CallManager Cluster ID:StandAloneCluster Node ID:ISR-CUCM|Alarm001F29AE4
16:09:43.186 |Device UnRegister deviceName : 001F29AE4D77, Protocol : 1|*^*^*
I updated the Ip communicator the the latest version 8.6 .
no ips , ids , firewall between .
I opened a case on CISCO and they don’t have any solution for ME !