Solved Can't send SMS through Flowroute but can respond to SMS

[Frank86]

About a month ago, after upgrading to V18 U6, I set up SMS and MMS web hooks in Flowroute and was able to send and receive SMS messages through my 3CX numbers. All was good.
Now, I can successfully respond to SMS messages sent to my 3CX numbers, but if I send a new message to the same external numbers, my messages show up in 3CX with a red x and don't go out.
Why would that be?

 

[YiannisH_3CX]

Check that your access key and secret key are correct in the 3CX trunk settings. If they are and you still cannot send SMS then I would recommend contacting Flowroute support for assistance.

 

[virtualcenter]

Check my thread, could be related.

 

[Frank86]

I just had to change the Flowroute DID configuration from *1(number) to the E164 format +1(number)