Getting "Bad Request" when adding Twilio Trunk

[lastshadow]

Brand new account, trying to add Twilio trunk. I enter the account SID and token, select the phone number and then enter a name. I have tried TwilioTrunk, and other styles but I still get bad request. I made sure there are not special characters, just numbers and letters but no joy. Obviously a problem that's been happening for many people but the solution never seems to be posted. 3cx support will just say try again and it magically works. Hopefully we get better resolution this time.

Thanks
Lastshadow

 

[SteveITS]

IIRC it has to be a very unique name.

 

[KyriacosS_3CX]

And the automated Twilio setup is set to create a new trunk, not use an existing one. If your Twilio account is at its max trunks, the request will fail.