I've seen Multi PTT mentioned in a few places... anyone know wtf that is?
I checked it out and here's what I found...
24. MOTOTRBO Release 2.4 24 MULTI-BUTTON PUSH TO TALK (PTT) & CHANNEL STEERING
25. Multi-Button PTT & Channel Steering MOTOTRBO Release 2.4 25 • Multi-Button PTT from peripheral device • Each button press reverts to a designated channel and Keys up the radio • Up to 7 PTT buttons on a single accessory
Example: • Radio PTT button: Key-up selected channel • PTT1: call Dispatch • PTT2: call a Supervisor • PTT3: call Maintenance • PTT4: etc
WARNING: MBPTT accessories are not provided by Motorola Solutions. MBPTT accessories must be built by the users or 3rd party vendors. A reference design for a MBPTT accessory is available upon request from Motorola.
26. Multi-Button PTT Configuration Configure the Accessory tab in CPS as follows: Index MBPTT 3 (Pin #12) Index 1 0 0 1 Index 2 0 1 0 Index 3 0 1 1 Index 4 1 0 0 Index 5 1 0 1 Index 6 1 1 0 Index 7 1 1 1 (0 = “Not Asserted” 1 = Indicates “Asserted”) Multi-Button PTT is only supported in Digital Direct or Single site configuration, not IPSC, Capacity Plus, LCP or Connect Plus Multi-Button PTT channels may not have a Scan list enabled MOTOTRBO Release 2.4 26 MBPTT 2 (Pin #5) MBPTT 1 (Pin #4)
Multi Button PTT Premium License: HKVN4280A - Multi Button PTT with CH Steering
Here's the link:
http://www.slideshare.net/twowaydigitalradiocom/motorola-mototrbo-firmware-release-24-november-2014