diff --git a/check_sip_connected_peers b/check_sip_connected_peers
new file mode 100755
index 0000000..58c135e
--- /dev/null
+++ b/check_sip_connected_peers
@@ -0,0 +1,121 @@
+#!/bin/bash
+
+
+CRITICAL_LATENCY=100
+WARNING_LATENCY=70
+
+CRITICAL_PEER_NUMBER=0
+WARNING_PEER_NUMBER=1
+
+IPS=()
+SITE_NAME=""
+DEBUG=0
+
+function usage() {
+	[ -n "$1" ] && echo "$1" && echo
+	echo "Usage : $0 [-cX] [-wX] [-CX] [-WX] [-d] [site name] [IP1] [IP2] ..."
+	echo "	-h		Show this help message"
+	echo "	-d		Enable debug mode"
+	echo "	-c[X]		Specify critical number of connected peers"
+	echo "	-w[X]		Specify warning number of connected peers"
+	echo "	-C[X]		Specify critical latency average of connected peers (in ms)"
+	echo "	-W[X]		Specify warning latency average of connected peers (in ms)"
+	echo "	[site name]	Specify the site name (use in return)"
+	echo "	[IP1] [IP2]	Specify IP address of the specify site"
+}
+
+function debug() {
+	[ $DEBUG -eq 1 ] && echo -e "$( date "+%Y/%m/%d %H:%M:%S" ) - $1"
+}
+
+function join_by {
+	local IFS="$1"
+	shift
+	echo "$*"
+}
+
+# Parse arguments
+for arg in $@
+do
+	if [ $( echo $arg|egrep -c '^-[cwCWdh][0-9]*$' ) -gt 0 ]
+	then
+		a=$( echo $arg|sed 's/^-\([cwCWdh]\).*$/\1/' )
+		v=$( echo $arg|sed 's/^-[cwCWdh]//' )
+		case $a in
+			c)
+				CRITICAL_PEER_NUMBER=$v
+			;;
+			w)
+				WARNING_PEER_NUMBER=$v
+			;;
+			C)
+				CRITICAL_LATENCY=$v
+			;;
+			W)
+				WARNING_LATENCY=$v
+			;;
+			d)
+				DEBUG=1
+			;;
+			h)
+				usage
+				exit 0;
+			;;
+		esac
+	elif [ -z "$SITE_NAME" ]
+	then
+		SITE_NAME="$arg"
+	else
+		IPS+=("$arg")
+	fi
+done
+
+[ -z "$SITE_NAME" ] && usage "You must specify site name" && exit 1
+[ ${#IPS[@]} -eq 0 ] && usage "You must specify at least on ID address" && exit 1
+
+debug "Specified site name : $SITE_NAME"
+debug "Specified IP addresses : $( join_by ' ' ${IPS[@]} )"
+
+debug "Warning/Critical latency : $WARNING_LATENCY / $CRITICAL_LATENCY"
+[ $WARNING_LATENCY -gt $CRITICAL_LATENCY ] && usage "Warning latency must be lower than critical one" && exit 1
+debug "Warning/Critical number of connected peers : $WARNING_PEER_NUMBER / $CRITICAL_PEER_NUMBER"
+[ $WARNING_PEER_NUMBER -lt $CRITICAL_PEER_NUMBER ] && usage "Warning number of connected peers must be greater than critical one" && exit 1
+
+
+state=$( /usr/bin/sudo -u root /usr/sbin/rasterisk -rnx "sip show peers"|grep -E "($( join_by '|' ${IPS[@]} ))" )
+debug "Current connected peers connected on specified IP address :\n$state"
+
+nb_connected=0
+sum_latency=0
+
+
+IFS="
+"
+for line in $state
+do
+	if [ $( echo -e "$line"|grep -Ec ' OK \([0-9]+ ms\)' ) -gt 0 ]
+	then
+		let nb_connected=nb_connected+1
+		let sum_latency=sum_latency+$( echo -e "$line"|sed 's/.* OK (\([0-9]\+\) ms).*$/\1/' )
+	else
+		debug "Unmatched line or not connected peer :\n\t$line"
+	fi
+done
+debug "Nb connected peers : $nb_connected"
+let avg_latency=sum_latency/nb_connected
+debug "Average latency of connected peers : $avg_latency ($sum_latency / $nb_connected)"
+
+STATE=OK
+MSG="$nb_connected peer(s) connected on $SITE_NAME with an average latency of $avg_latency ms|'connected peers':$nb_connected;$WARNING_PEER_NUMBER;$CRITICAL_PEER_NUMBER;0;0 'average latency':$avg_latency;$WARNING_LATENCY;$CRITICAL_LATENCY;0;0"
+EXITC=0
+if [[ $nb_connected -le $CRITICAL_PEER_NUMBER || $avg_latency -ge $CRITICAL_LATENCY ]]
+then
+	STATE=CRITICAL
+	EXITC=2
+elif [[ $nb_connected -le $WARNING_PEER_NUMBER || $avg_latency -ge $WARNING_LATENCY ]]
+then
+	STATE=WARNING
+	EXITC=1
+fi
+echo "$STATE - $MSG"
+exit $EXITC