Calling 9-1-1 From Your Cell Phone
cellphone caller 

The City of Berkeley Police Department strongly recommends cell phone users to program our police dispatch number into their cell phone to speed up the emergency process and save the loss of time involved in the transferring of the call. Cell phone users in Berkeley can program (510)981-5911 (local - no toll charge) into their phones for a direct connection to the Berkeley Police Department Public Safety Communications Center.

If you must make a 9-1-1 call from your cell phone, it is important to stay on the line and provide the dispatcher with as much information about the exact location of the emergency to ensure the help can be dispatched to the correct location.