I grep'd the entire source tree and found no mention of this variable.

One thing you can do is look to see if various transfer_xxx variables are set in phone-to-phone calls vs. transferred calls. I'd start with "transfer_source" var and go from there.

-MC

On Wed, Feb 20, 2013 at 3:56 PM, Steven Schoch <schoch+freeswitch.org@xwin32.com> wrote:

This must be a FAQ, but I can't find it.

In the default dialplan, how can I tell if the call was from an internal phone, or from an external call that was transferred?

One page said there was a variable ${internal_call}, but I can't find that anywhere in the source.  Should I just look to see if a directory variable, like account_code or user_context is set?

-- 

Steve

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