If you did the upgrade and af31 carried over in the service parameters, make sure the settings were changed and also try restarting the CCM service and use a sniffer to make sure that in the lan side, the phones are definitely marking the traffic properly.
The mls qos map command is global to the switch, which means on any port, if a packet comes with COS 5, its converted to a internal DSCP of 46 for forwarding with in the switch backplane. Same applies for Cos 3 maps to DSCP of 24. Since you are using this mapping, the port trust state has to be set to mls qos trust cos, so that the switch acknowledges the cos setting sent by the phone. If you use mls qos trust dscp as the trust setting then you dont need to use the global mls qos cos map.
I typically use mls qos trust dscp command on uplinks to a router or even another switch if the upstream router/ switch is sending dscp which is usually the case of a remote site where the router receives packets marked with DSCP and sends the packet on to the switch.
SIP traces provide key information in troubleshooting SIP Trunks, SIP
endpoints and other SIP related issues. Even though these traces are in
clear text, these texts can be gibberish unless you understand fully
what they mean. This document attempts to br...
Please find the attached HTML document, download and open it on your PC.
This provides an easy to use form where you simply answer a few
questions and it will render the proper jabber-config.xml file for you
to copy/paste. There is built in logic to verif...
CUCM Database Replication is an area in which Cisco customers and
partners have asked for more in-depth training in being able to properly
assess a replication problem and potentially resolve an issue without
involving TAC. This document discusses the bas...