We have a CUCM system BE6K ver 10.5.1
It has one Unity server version 10.5.1.
When we try to complete the initial user voice mail setup from any Ip Phone, we select voice mail button, the initial prompt (asking for password) is good, but after that, all system prompts playbacks are too SLOW.
Once you finish to setup the voice mail user, any future interaction with Cisco Unity run perfect with proper system prompts playback.
The issue only occurs when we run the initial voice mail setup.
I have not found any troubleshooting information related to this specific problem, so I appreciate any help.
Best regards
Enrique