diff --git a/nmap-service-probes b/nmap-service-probes
index b7da9a5ba..88dbf5269 100644
--- a/nmap-service-probes
+++ b/nmap-service-probes
@@ -8224,7 +8224,7 @@ match ldap m|^0\x1a\x02\x01\x01a\x15\n\x01\0\x04\0\x04\x0eBind succeeded$| p/Sie
 ##############################NEXT PROBE##############################
 Probe TCP SIPOptions q|OPTIONS sip:nm SIP/2.0\r\nVia: SIP/2.0/TCP nm;branch=foo\r\nFrom: <sip:nm@nm>;tag=root\r\nTo: <sip:nm2@nm2>\r\nCall-ID: 50000\r\nCSeq: 42 OPTIONS\r\nMax-Forwards: 70\r\nContent-Length: 0\r\nContact: <sip:nm@nm>\r\nAccept: application/sdp\r\n\r\n|
 rarity 5
-ports 406,5060
+ports 406,5060,31337
 sslports 5061
 fallback GetRequest
 # Some VoIP phones take longer to respond
@@ -8279,6 +8279,9 @@ match sip-proxy m|^SIP/2\.0 503 Remote end of tunnel is not connected\r\n.*\r\nW
 match sip-proxy m|^SIP/2\.0 200 OK\r\n.*\r\nUser-Agent: ComdasysB2BUA([\w._-]+)\r\n|s p/Comdasys SIP Server/ v/$1/
 match sip-proxy m|^SIP/2\.0 405 Method Not Allowed\r\n.*\r\nServer: SIParator/([\w._-]+)\r\n|s p/Ingate SIParator/ v/$1/
 
+# The SIPOptionsProbe can trigger a response out of psyBNC
+match irc-proxy m|^Login failed\. Disconnecting\.\r\n$| p/psyBNC/ i/Login Failed/
+
 softmatch sip m|^SIP/2\.0 ([-\w\s.]+)\r\n.*Server: ([-\w\s/_.]+)\r\n|s p/$2/ i/Status: $1/
 softmatch sip m|^SIP/2\.0 ([-\w\s.]+)\r\n| i/SIP end point; Status: $1/