1. Database not connected issue most likely local, please try from another operator workstation
2. This is most likely CSS issue. Please check if the Gateway incoming calling CSS have access to partition of the Operator's IP Phone Partition and all the CTI Ports parition
3. Check the "busy trigger" and "maximum number of calls" are set to 2 and 4 in cucm for the cti ports
4. same as 3
Also double check
- if all the CTI ports are registered
- check "Desired number of possible Automated Voice Lines:" are 200 or more (for Wave Drivers) (under TSP config. Start > Run > telephon.cpl)
- If all the CTI Ports are configured (cueac web admin page > System Configuration > system Device Management)
* CT Gateway Devices
* Serivce Devices
* Park Devices
Thanks