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Incoming call on S20 FXP port

No Name

December 12, 2020 10:56

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I have S20 with S2 card

A GSM converter (SIM to analog)  is connected to port 1 of S20

But I cannot receive calls from the GSM to the S20

I not see FXS port in routein or routeout

What to do to receive calls from GSM to S20 ?

 

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2 comments

• 0
  
  Larry Neblett December 13, 2020 12:15

  The S2 card is used to connect an analog device to the PBX, such as a telephone,  fax, answering machine, etc. This is an FXS device (Foreign eXchange Station or Subscriber). 

  It is the O2 card that is used to connect a telephone line to the PBX so that it can receive telephone calls. This is an FXO device (Foreign Exchange Office). 

  An easy way to think of it is, that the FXO takes the ring in (from a telephone line) and whereupon it is converted to SIP whereas the with FXS the SIP is converted and to analog and the FXS delivers the ring out (to a analog device).

   

  You need to check the documentation of the GSM device and likely get a O2 or SO card. 

• 0
  
  Elvis Havale December 16, 2020 08:55

  You have to use the O2 module or choose a GSM/3G/4G Module and insert the SIM card to your S20.