UCCE and CUCM is based in US, call collection also takes place i
if the only link between the call center core and the agents is the CTI or CTI OS (plus the media of course), then the answer is no, you don't need a VXML-enabled gateway in India. The reason is simple: calls arrive in the US and not in India.
Basically, a gateway - especially if used with CVP which is your case I guess - may be configured to parse VXML which contains instructions to play prompts, collect digits etc. In other words, it's an IVR.
Are you getting this error “Installer User Interface Mode Not Supported. The installer cannot run in this UI mode. To specify the interface mode, use the -i command-line option, followed by the UI mode identifier. The value UI mode identifiers...
The below trick might come handy when you have to add a new node to a cluster but you don't have or is unsure of the security password for the publisher. This procedure has been around for ages.
1) Login into the CLI of the Publisher.