For specifics in your area, you may want to do an internet search for repeaters in your area since codes in one area may not necessarily be the same in another one. This would be especially true for the alternate emergency services center access codes.Emergency Autopatch - 911 Access
Key-up, and enter the emergency number ( 911 ). Un-key, and the voice will read back “Centre County Emergency 911 access” after which the repeater will dial the number. You may also dial ( 2 * 911 ).
Other Emergency Autopatch Numbers
The 85 repeater can dial the following emergency services by entering the 900 series codes as listed. Simply key in the three-digit number to access these services
910 – Huntingdon County Emergency Dispatch Center
911 – Centre County 911 Emergency Dispatch Center
912 – Pennsylvania State Police, Rockview Division
913 - Centre County Non-Emergency police assistance
914 – Penn State Campus Police
Maybe it's that way in Kansas; here in southeast Virginia the public safety dispatchers know it's semi duplex the moment we say "calling via amateur radio". Of course, the other indication is silence followed by a microphone opening.And when the dispatcher doesn't realize it's a semi duplex system and talks continuously you will eventually give up and die.
Why do people insist on polluting every thread about emergency communications with this garbage? What you say is not correct. At best, it is incomplete. If you intend to use an emergency autopatch on a ham repeater, no matter what the situation, if you cannot give a legitimate callsign for identification, be prepared for a control operator to follow the regulations and shut down the patch.I would just like to note that if you are in an emergency, all normal operating procedures are suspended if you or someone else's life is in danger. I mean unless you are just calling 911 to report a buglary or something (non-life threatening) then you don't really need to worry about rules.