If your looking to get 911 your looking at getting a trunktracker V digital scanner that can get phase II,
If you got the 355 to get 911 calls, I'd return it if you recently acquired it.
Worcester County Trunking System Profile
www.radioreference.com
First Responders Interoperable Radio System Team (FIRST) Trunking System Profile
www.radioreference.com
whistler TRX1, TRX2
Any of the current Unidens 996P2, 325P2, 436HP, Home Patrol2, 536HP, SDS 100, SDS 200.