Blocking SMS numbers or shortcodes

[caldwell]

We have a client who has been receiving texts routinely from a shortcode number (example: +123456).

I've tried adding 23456 and +123456 to the system blacklist. None of that works.

How do we block a number entirely so it cannot send an SMS to a system extension?

Before you ask, no, the 3CX-approved carrier does not have a way to block them upstream currently.

 

[TheodorosG_3CX]

The CID will apply for inbound calls so it will not block the SMS.
This has to be checked from the provider in order to be prevented.

 

[caldwell]

Has anyone found a 3CX-approved VOIP carrier that DOES support blocking of SMS/text numbers and shortcodes?

VOIP.ms does NOT.