Is it possible to only enable outgoing SMS but not incoming SMS?

[erostratus]

I set up SMS via Telnyx, using v16.0.8.9. Super easy and it works great. Our law office ideally wants to have two-way phone calls with our clients and not use SMS. Some clients need us to text them certain pieces of information. We can now do that, but as far as I can tell, we have to allow the clients to text us back, and we don't want to let clients shift communications from phone calls towards SMS. Is there any way to enable only outgoing SMS? I don't care if clients text back, but I don't want my employees to ever have to see the texts.

When I set up the routing, 3CX will let you configure only outgoing SMS and skip the incoming SMS configuration for a particular line. But if you do that, that line isn't an available line for SMS when you configure individual extensions, which seems to make it unusable. Am I missing something, or is it impossible for individual extensions to have only outgoing SMS configured?

Thanks!

 

[Evolute IT]

Create a dummy extension for incoming messages, configure the DIDs in the messaging section to go to that dummy ext, then configure the users to allow Outgoing SMS from the configured DID of your choosing (Extension>General, bottom of the page)

 

[erostratus]

This was a good idea, and I tried it, but when a client texts back, that dummy extension is now in charge of the conversation. That means no one else but the dummy extension can send a further text, which won't work. I understand that in v18, I may be able to auto close those conversations after 24 hours, but I'm not ready to go an alpha version.

 

[NickD_3CX]

Although I'm not sure I should be saying this as it can be easy to forget in the future, but you could try purposely misconfiguring the Webhook URL in your Telnyx account, or even not setting it at all.

Give it a try if you want, but if what I think may happen is that Telnyx will try to send incoming messages somewhere, but they just wont be arriving at your PBX...

If it does work, just remember you've done this in case you actually want 2-way SMS communication in the future.