The MSAT-PSTN Interface enables MSAT-G2 radio operators to access MSAT voice and PTT service functions via an analog telephone. When using a cordless analog phone, the interface extends satellite phone coverage throughout buildings. The device also facilitates integration of the MSAT-G2 radio into a Private Branch Exchange (PBX) system. Now organizations can easily incorporate MSAT services into their office telephone networks, ensuring reliable back-up capability when it is needed the most.


  • Analog telephone connection (RJ-11)
  • Access to PTT functions via analog phone (PTT, talkgroup toggling etc.) PTT supported by pressing either a '*' to PTT the radio or a '#' to return back to receive mode.
  • Differential Ringing - Different ring tones identify different call types (Telephone or PTT)
  • Answers in a specific number of rings and allows the user to command the radio from phone line.
  • Bright LED display on front of the MSAT-PSTN aids in initial setup and provides real time feedback during operation.
  • Power is provided by the MSAT-G2 on the radio end and +12V power is required on the handset end (power module included).
  • Connect MSAT-G2 into a PBX for more flexible usage.
  • The user can also change user talk groups from the phone DTMF pad.
  • Two models are available, either Foreign Exchange Office (FXO) or Commander model.

Orders Include:

  • MSAT-PSTN Module
  • 1' Network Cable (to link PSTN to MSAT-G2 Radio
  • MSAT-PSTN Bracket & 5 Bracket Screws
  • MSAT-PSTN Manual


In FXO mode, the MSAT-PSTN provides the user with all the standard handset features the MSAT-G2 provides.

To initiate a call, enter desired phone number and press the '*' (star) button. When call is complete, user either hangs up the phone or presses the '#' (pound) digit.

FXO Model (Normal PSTN)

  • When the radio goes active, it rings an analog telephone in an effort to contact the user during activity.
  • The MSAT-PSTN acts like an analog phone line allowing a standard analog telephone to be connected.
  • To use, pick up an analog telephone handset and the PSTN-FXO will provide you with dial tone, now you can command the G2


SKU: 360-230-1001


MSAT-PSTN User's Guide