You may have a QoS issue. We have tested a 7985 and found that the switch did not identify it as a "cisco-phone" for the purposes of QoS, cdp did identify it correctly. This problem appears to be resolved by upgrading the IOS on the switch that the 7985 is conencted to. We are still testing to confirm the new IOS (12.2-40.SE) hasn't introduced it's own problems.
We didn't configure the Qos on the network, but we'll try to update one of our switch,
as you say.
In my opinion, the problem can be a codec problem because we have few problems with other internal Cisco phones (LAN and WAN), some problems with PSTN phones and a lot of problems with internal calls through Qsig.
I'm not able to access my old voice mail messages all of a sudden. The recording says something like 'the message is currently not available'. This has never happened before in all the years I have been using this system. I have t...