Polycom 3725-76302-001LI manual Ms-forking, OUTPUTSIPHEADERSUser-Agent =, Someone. Not a DMA

Preliminary/Postliminary Scripting Call Server Configuration

Table 10-10Predefined variables for preliminary and postliminary scripts (continued)

Variable	Initial value
CALLER_SITE_NAME	The name of the caller’s site.
CALLER_SITE_SITE	The site code of the caller’s site.
_CODE
CALLER_TEL_URI	Array variable initially set to the set of Tel URI
	addresses of the caller. The length of the array is 0
	if the caller doesn’t have a Tel URI address.
DIAL_STRING	Initially set to the dial string being evaluated. If the
	script modifies the DIAL_STRING value, the
	modified value is used as the input to the dial rule
	action.
	For SIP, when the DIAL_STRING is modified by the
	script, it’s used as shown in Table 10-11, depending
	on the dial rule action:
INPUT_SIP_HEADERS	For SIP calls only, an associative array containing
	the SIP headers in the received SIP INVITE
	message.
	Usage example:
	if(INPUT_SIP_HEADERS["Supported"].matches
	(/.*ms-forking.*/))
	{
	...
	}
OUTPUT_SIP_HEADERS	An empty associative array. Headers that the script
	adds to this array replace the corresponding
	headers in the received SIP INVITE message. If a
	header added to this array isn’t in the received
	INVITE message, it’s added to the INVITE
	message.
	Usage example:
	OUTPUT_SIP_HEADERS["User-Agent"] =
	"Someone. Not a DMA 7000.";
	OUTPUT_SIP_HEADERS["Some-Custom-Header"]
	= "Whatever you want";

The following table shows how different dial rule actions apply a preliminary script’s modified dial string to the output SIP headers in a SIP call.

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