i heard about this a few days ago, it's a service provided by a company called TelTech systems.
TelTech Systems Introduces TrapCall to Unmask Blocked Caller ID - MSNBC Wire Services - msnbc.com
if you register your number and enter something on your phone, it re-routes 'unknown' and 'restricted' numbers to their systems, finds out what the origin is, and re-routes it back to your phone with the caller id.
supposedly, the caller hears ringing during the process and is unaware.
i always wanted to have a feature like this because tmo does not block unknown numbers that call my phone, and i don't like picking up, so i let it ring to voicemail.
i want to try this, but i'm a bit cautious on what would happen if i provided teltech with my phone number. i'd want to be sure they don't use it for marketing, and also if any carriers out there are adopting this service for customers ?
if anyone has tried it, or has more info, would u please share ?