<div>I have a single UCM 8.5 cluster with multiple sites. The inter site calls are sent through PSTN so when the remote site users receiving the call from main site, the remote phone will display the DID number without name. Is there a way we can tweak this such as to convert the incoming number to an internal number at the main site and then UCM intelligently match the extension and show the name of calling party? I read some notes about calling party transformation but have no idea if this is will achieve what I want.</div>
<div>If anyone of you have done this with UCM or have a sample setup for this, please share and any feedback is appreciated. Thanks</div>