SIP_DETECT_SSAF_nParameter Name Example SIP_DETECT_SSAF_1Value Format BOOLEANDescription Specifies whether to enable SSAF for the SIP servers (registrar server,proxy server, and presence server).Value Range • Y (Enable SSAF)• N (Disable SSAF)Note• If set to "Y", the unit receives SIP messages only from thesource addresses stored in the SIP servers (registrar server,proxy server, and presence server), and not from otheraddresses. However, if "SIP_OUTPROXY_ADDR_n" in5.3.19 SIP Settings is specified, the unit also receives SIPmessages from the source address stored in the SIP outboundproxy server.Default Value NWeb User Interface Reference Enable SSAF (SIP Source Address Filter) (Page 109)SIP_RCV_DET_HEADER_nParameter Name Example SIP_RCV_DET_HEADER_1Value Format BOOLEANDescription Specifies whether to check the user name part of the SIP URI in the"To" header when receiving the INVITE message with an incorrecttarget SIP URI.Value Range • Y (Enable username check)• N (Disable username check)Note• If set to "Y", the unit will return an error reply when it receivesthe INVITE message with an incorrect target SIP URI.• If set to "N", the unit will not check the user name part of the SIPURI in the "To" header.Default Value NSIP_RCV_DET_REQURI_nParameter Name Example SIP_RCV_DET_REQURI_1Value Format BOOLEANDescription Specifies whether to check ReqURI that is the part of SIP URI in "To"header when INVITE with wrong target SIP URI is received.216 Administrator Guide Document Version 2015-025.3.19 SIP Settings