We have unity 4.0 setup and running on our system. We have 16 ports on our system. At most we have 5-6 call at a time and even fewer people accessing unity. Sometimes when people check messages or try to leave a message they receive the fast busy signal. When we reboot our unity server this problem will go away for a day or two only to return again. Help!!!
Please tell us what specific Unity version you are running 4.0(x) and any engineering specials applied. PBX integration could be helpful too. You can get the Unity ES information by running the Gather Unity System Information (GUSI) tool on your Unity server. Also, how many of your 16 ports are configured to answer calls - please provide the ratio, ie. how many answer only, others configured for MWI, notification, TraP. Lastly, any notable errors in the Application event log when this occurs?
Any application event log errors when the problems occurs? You may want to turn on SkinnyTSP traces in Micro Trace, Unity Diagnostic Tool. If you haven't run this before, start UDT - found in your Unity Tools Depot under Diagnostic Tools. Select Configure Micro Traces and click the outside box for SkinnyTSP (this checks everything under that category). Save. Then click Start New Log Files so you begin capturing relevant data in new files. It sounds like this is happening pretty regularly, so you shouldn't have to run the trace very long. Run Gather Log Files to format the trace files created. To turn off, select Reset to Default Traces and then select Start New Log Files (best done before restarting Unity). You can send this information and the GUSI to TAC. I didn't find anything specific in the 4.0(5) engineering changes that exactly matched your problem. There were a number of bugs that contained the word search PORT, only one for REORDER. You might look at this troubleshooting link for reference to see if it applies to you - http://www.cisco.com/en/US/customer/products/sw/voicesw/ps2237/prod_troubleshooting_guide_chapter09186a0080449d76.html#wp1034373
TAC should be able to help you diagnose further. I ran Unity 4.0(5) and did not experience this problem - maybe someone else on our forum would have a specific bug ID or ES that worked for them?
I figured it out with the help of cisco support. It looks like the call manager was not rolling the unity calls to the next available port. The issue turned out to be the Hunt pilot was not configured in Call Manager.
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