[Freeswitch-users] Caller ID NAme switches to "mod_sofia"

Hi, My customer has Aastra 67xx phones. I have two problems relating to caller id. 1 - The setup on the phone appears to take president over my setup for that extension in the XML (for caller id and caller name). 2 - While the correct number and extension appear from interoffice phones, as soon as it gets answered the display changes to "mod_sofia". Any advise will be greatly appreciated. Thanks, Sean