Hi folks, I'm hoping someone can help me get at custom headers in the dial-plan. I've read about X- headers being accessible but need to get at some X_ headers passed through from a proxy. Reading the info app docs, the X shouldn't actually matter but no matter which way I try I always seem to get a null result. An example header in an INVITE is: X_ACCOUNTCODE: XXXXXX. I've tried the following dial-plan structures hoping one might work but none do: <action application="set" data="accountcodea=${variable_sip_h_X_ACCOUNTCODE}" /> <action application="set" data="accountcodeb=${variable_sip_h_ACCOUNTCODE}" /> <action application="set" data="accountcodec=${sip_h_X_ACCOUNTCODE}" /> <action application="set" data="accountcoded=${sip_h_ACCOUNTCODE}" /> Any help would be much appreciated. Thanks, Simon