Description: This gauge is applicable to SIP originated calls. It measures the average time (in milliseconds) it takes between the receipt of an INVITE message for the origination of a new call and the transmission of an INVITE (Sip terminator), RQNT (MGCP terminator with in-band ringback), or CRCX (MGCP terminator without in-band ringback) to the primary device of the original called party (in the case of intra-group call) or to the network element of the original called party (in the case of a call to the PSTN). Delays incurred by a query to an external element (e.g. - dip to the Network Server, CNAME query, any external database interaction incurred by CPL scripting) are part of the measurement. This measurement is intended to reflect the elapsed delay between receipt of the call setup signal from the caller and transmission of the call setup signal to the called party