We have changed our MyPBX Soho to a S20 and now getting Problems with Clip-No-Screening. We have 1 Trunk Provider (Deutsche Telefon AG) who needs P-Prefered-Identity or CallerName for Clip-No-Screening.
The MyPBX Soho don't support P-Prefered-Identity so we changed CallerName in From Field which worked like a charm.
But with the new S-Series we getting this not to work.
Any Suggestions? Can i do some custom configuration to send something like this:
SIPAddHeader(P-Preferred-Identity: NUMBER)
Greets from Germany