On 07/08/2013 05:32 AM, Mino Haluz wrote:

I need to modify Allow header that is sent from Freeswitch, to restrict it to only some very important ones. Do you think it really violates RFC ? :))

Technically, yes. The field is populated by a UA, and the proxy has no business touching it.

Practically speaking, you can probably get away with it, especially if you're restricting it rather than enlarging it.