editing /etc/iaxmodem-cfg.ttyIAX* changes cidnumber but not cidname

[big charlie]

I'm trying to edit the name that shows on the header of faxes. IncrediblePBX is the default, somewhere.

in /etc/iaxmodem-cfg.ttyIAX{*} setting cidnumber effected the CID displayed on the receiving fax machine (avantfax same install) but editing the cidname didn't do anything about the 'from' header printed at the top of the fax.