What are all the limitations with just having 7.2.2 and trying to implement a custom CTI solution to connect to a Third Party telephony vendor?
One of our upcoming client dont use Genesys CIM instead they use Genesys Voice CTI product. Should we go for custom solution in this case or the out of the box CTI template for Genesys support Genesys voice product as well?
Whether the custom integration is done at the desktop or server depends on the API and event notification mechanism used by the CTI provider. It's possible to either without using OpenCTI, it just requires more work and customization on your part.
As for Genesys, we support their voice platform SDK for what is currently marketed as Genesys Pure Engage.