IVR not redirect to external numbers

[helder-ganhao]

Hi. In my company we have an IVR configured for automatic answering that redirects with keys to the corresponding internal telephone extensions. Some of these internal telephone extensions are redirected to private mobile numbers through our callmanager. Recently this redirection to private mobile phones is no longer done when we enter through the IVR, but if we call the internal telephone extension internally the redirection is carried out. It seems that some signal is sent through the IVR that does not allow the extension to redirect to the cell phone. What could be the problem? Thanks for any help.