I get the call for a user using Sandbox app by following API call:

var usersCalls= await restClient.Restapi().Account().Extension().CallLog().List(

    new ReadUserCallLogParameters

 {

 perPage = 30,

 showBlocked = true,

 dateFrom = "some date",

 dateTo = "some date",

 view = "Detailed"

 });

Some of the transferred calls do not have original, not RingCentral phone numbers.

If A calls B, then call forwards to C I can see the A number (A number is not RingCentral number).

The problem is to get A number for the forwarded outbound call.

Like B(RingCentral number) calls A(not RingCentral number), then B forwards call to C(RingCentral number), in that case, I don't see A number.

Is that by design and expected not to see the original number (A number)?

Thank you.