said by pende_tim:Verizon and Sprint both use CDMA however all Sprint roaming has been removed from the PRL in the NY area for about 3 years. This means that a Verizon customer can not make a call on the Sprint PCS network even if the phone is showing No Service and he is standing next to a Sprint tower.
The E911 rules however require any compatable carrier to accept a 911 call from any compatable phone, even it it is not activated.
If Sprint isn't in VZ's PRL, then will 911 still go thru Sprint's towers in the example you used (no VZ reachable) on a typical CDMA phone that was most recently on VZ's network that has VZ's PRL loaded?