OB CIS showing 'Private Number'

[roehrle]

I'm in area code 609. My son lives less than a mile away and he is seeing caller unknown when I call him.

[fisamo]

This issue gets more interesting to me. I've found that my voipo number may or may not appear, depending on who I call. If I call my mobile phone (Verizon) or my CallVantage line, the number comes through fine. If I call a friend who happens to use Voicepulse, they see Unknown Number.

For those who are seeing this issue, is it truly intermittent, or is it consistently 'unknown' for some numbers but working correctly for other numbers?