The dispatch center will not automatically know your location. For this reason, if you send a text message to 911, it is important to give the 911 call taker an accurate address or location as quickly as possible, if you can. Texting to 911 is different from making a voice call to 911 in this respect. When you make a voice call to 911, the call taker will typically receive your phone number and your approximate location automatically. This is called "Enhanced 911" or "E911." However, in most cases when you text 911 from a wireless phone, the call center will not receive an accurate location.