Yes it does. I believe one gets real time altitude tracking with it if one uses the TeleBt. I think it too also will provide an APRS position packet so one can do APRS tracking without the other telemetry
provide by the Altus Metrum protocol. Specifically, one would see the GPS altitude and not the Baro altitude which can be provided by the Tele-BT and Altus or Altus Droid software. With APRS tracking one can recover the rocket and download manually the on device information. In fact, one should always see what's in the memory as some of the Rf packets might be missed for a variety of reasons.
Personally, I think to get the greatest utility out of the Altus Metrum products a Tele-BT is a very fine investment. The only exception here would be the Tele-GPS. If one already has a ground receiving
station to track the 70cm Beeline GPS products (eg. a Kenwood D72A, Kenwood D74A, Yaesu VX8GR, FT1DR or another arrangement like a Mobilinkd TNC bonded to any reliable Ham handi-talkie) They can use their current station to track the Tele-GPS right out of the box. They wouldn't need the Tele-BT except that it is a very cost effective means at $155.00 to track Altus Metrum devices.
The Tele-GPS is a very compact GPS tracker smaller than a Beeline GPS. If one desires a GPS tracker in a small footprint, it's the one to use. To go smaller with a GPS tracker would take something like
the Marshall Falconry GPS tracker:
https://marshallradio.com/north-american-falconry-products/gps-systems Again, there is a very sizable investment there and one would have to use an iPhone or Apple tablet with it
and factor that into the cost. No Android device availability.
The Tele-BT uses whatever 70cm band antenna (420mhz to 450Mhz) one wants to attach to it. I have a 7 element Arrow antenna:
https://www.arrowantennas.com/arrowii/440-7ii.html I simply
velcro the Tele-BT to. On the other side of the boom I have an electronic attenuator:
https://www.west.net/~marvin/k0ov.htm mounted in a plastic box with 9V battery I can plug in and use it for RDF tracking as desired. I prefer the electronic attenuator as I can "dial-in" the amount of attenuation I need to give a sharp cut-off on the power level meter on the handi-talkie. One should exercise caution here as the cheap Chinese dual band handi-talkies available "DO NOT" have a true power level meter. It's either "all on" with a signal present or "all off" with no signal. There is no in-between. Kurt