How to turn a computer into a phone line (physical phone jack)?

Question

I have a electronic key synchronization device that needs a phone land line to make an automated call to HQ to download a daily security code. The problem is I don't have a phone land line, only broadband internet. Can I turn my old modem in my PC into like a reverse modem somehow so I can plug this device into the PC modem and let it make its call?

Thanks

Answer 1

Generally you can do it with a Voice Modem installed in your PC.... but you need to connect it to a PSTN connected landline and software, such as from NCH Swift Sound.

However, because you state that you do not have a PSTN connected land-phone, then a Voice/Data Modem will not be of any value without the PSTN phone line.

In which case, you should try using VoIP.

However, I'm not clear on the fact that you seem to indicate that you need to access your company using your computer modem?

If this is true, I is conceivable that you can connect the output of your PC Modem into the phone jack of a VoIP ATA adapter.  The VoIP ATA adapter will appear the same to your modem as a PSTN phone line.  Thus, conceivabley, your modem will communicate through your VoIP adapter.

For example, you could try subscribing to a VoIP service such as InPhonex or CallCentric (links through my profile).

You can get an ATA phone adapter through InPhonex.

With CallCentric, you need to provide your own ATA.  I purchased my Linksys PAP2T ATA VoIP adapter through VoIP Depot in Canada.

Then , I configured it for service with InPhonex on Line-1 and CallCentric on Line-2.

If you want your VoIP adapter to pass your PC Modem signals most efficiently, your adapter need to be set to only use VoIP CODEC: "G.711u"

G.711 codec is the highest bandwidth codec that should pass all audio frequencies as required for an analog data Modem, Voice Modem,  or Fax.