Sierra 1, 2, 3, and 4 are superintendents each with an area of responsibility. I believe 1 is (generally) NE, 2 is NW, 3 is SE, and 4 is SW, but I could be wrong. I'll try to snag the map tomorrow night at work.
CCT is NOT "City Core Truck", it's "City Centre Team". They're what used to be Medic 3; they are a crew that have special resources and capabilities for the downtown area and its unique requirements. CCT is more or less a regular ambulance.
IRP is the Incident Response Paramedic. He or she is in a PRU (Paramedic Response Unit, usually a Ford Explorer or Jeep Cherokee) and operates as a PRU on regular calls, but has special skills and equipment for responding to things like building fires, hazardous materials incidents, etc. He or she will also have the ability to utilize one of the two MRS (Medical Rescue Support) trucks or the MRC (Medical Rescue Command) unit. The MRS's are Ford F-series chassis with extra equipment and the ability to treat more than one patient at a time. The MRC is an International Navistar truck chassis with a ton of medical equipment on board and is used for mass casualty incidents (most recently at the train vs crane crash in Brentwood).
Papa 1 is the training vehicle. It's basically an ambulance body mounted on a large International Navistar chassis; the trainer (I'll get to them in a sec) can take it around and teach various skills without having to have crews take stuff off their own trucks to learn.
Foxtrot 1 thru 4, or FT01 thru FT04, are the Field Trainers and their numbering follows that of the superintendents. They go out to deliver training, assist on calls, and observe crews to ensure proper protocols are being followed.
Tango 1 (2, 3, etc) are equipment technicians.
Sierra 6 is the PEO, or Public Education Officer. The medic who makes all the press releases to the media and does the interviews.
Sierra 7 is the Deployment Superintendent. He maintains an office inside Public Safety Communications and helps the dispatchers maintain proper coverage throughout the city.
TEMS is the Tactical EMS medic. Like the IRP medic, he will go on regular calls when not doing his special duty, but whenever the Calgary Police Service TAC Team is needed, TEMS will proceed to their location and join them as part of the TAC Team. He has special training in the way TAC operates and their procedures.
Chief 6 is the Platoon Chief. He's kind of the Battalion Chief for EMS; responsible for all the field crews on a given shift.
(Chief 1 is obviously the chief of department, Tom Sampson; Chiefs 2 thru 5 have specific duties but I forget them right now - i.e. chief of training, chief of operations, chief of finances, etc.)
AMC is the Air Medical Crew. They work out of an office in the airport terminal and respond on bikes to calls inside the terminal itself, but also have a PRU which they take to a hangar at the south end of the airport if Calgary EMS has to do any air medevac flights (fixed-wing, not helicopter medevac like STARS). It's almost a daily occurrence for AMC to fly to either Lethbridge or Medicine Hat to pick up someone for a trip to the Foothills Hospital cath lab (cardiac care).
Geoposts are stations that must be covered first before any other non-geoposts are covered. This ensures adequate coverage across the city. Currently geoposts are 1, 6, 8, 9, 12, 14, 15, 18, 21, 22, and 26.
Demand posts are stations that are not filled until after all geoposts are covered. They are 'additional' stations in any given zone. They are 2, 3, 4, 5, 11, 17, 19, 20, 23, 24, 28, 30, 31, 32, and 34.
Code 99 is cardiac arrest.
Code 200 is paramedic's life in danger. You can answer 'unit contact' with either Code 15 (OK) or dispatch will assume it's a Code 200.
D4 = Destination 4 (Foothills Medical Center); D5 = Peter Lougheed Center; D7 = Rockyview General Hospital; D9 = Alberta Children's Hospital. Unofficially D2 has become the Sheldon Chumir Health on 12th Centre downtown.
"DOAP Team" is the Downtown Outreach & Assistance Program. Imagine what I felt like the first time I was asked to call the "dope team" for one of our urban outdoorsmen downtown.
That's all I can think of off the top of my mind...