Calltoken validation

I’m seeing this error in the CLI:

[2017-03-27 08:42:20] ERROR[1897]: chan_iax2.c:4998 handle_call_token: Call rejected, CallToken Support required. If unexpected, resolve by placing address in the calltokenoptional list or setting user 410002 requirecalltoken=no

But in my iax.conf I have:


and for the account in question I ahve set:


I’m running Ast 13.7.2. Is there another setting I need to change, or is the format of the conf setting wrong?