said by dsl2u:
A cell phone is far more effective for 911 than a land line.
While there are many real benefits to both VoIP and cell phones, 911 access is one area where POTS still rules for now (and the foreseeable future). Even VoIP and E911 in a home or office are better then mobile phones for 911 calls.
In most urban areas 911 call routing from mobile phones is highly unpredictable. Calls from freeway accidents get routed to local city departments while the emergency calls from homes near that same freeway get routed to a 911 center for the state highway patrol (often just a single location in the state capitol). Obviously the intend is the reverse, but far too often those critical 911 calls from mobile phones get delayed by initial routing errors and the need to forward those calls to the correct agency.
The only redeeming factor for cell phones in emergency situations is that almost everybody has one (no need to search for a phone when in an unfamiliar location). However if you want to ensure the quickest response to the correct location pick up a POTS phone instead (or a VoIP phone with E911).
The POTS phone will be wherever it is physically plugged in (not temporarily misplaced in the panic of an emergency) and will work regardless whether or not you remembered to charge your phone or whether or not your home has electric power (POTS phones are CO powered). Most importantly the 911 operator will know exactly from where you are calling even if you are in some way incapacitated from speaking.--
Got some spare cpu cycles ? Join Team Helix or Team Starfire!