diff --git a/check_sip_peer_simultaneous_channels b/check_sip_peer_simultaneous_channels
new file mode 100755
index 0000000..e356e67
--- /dev/null
+++ b/check_sip_peer_simultaneous_channels
@@ -0,0 +1,75 @@
+#!/bin/bash
+
+function usage() {
+	[ -n "$1" ] && echo "$1" && echo
+	echo "Usage : $0 [-cX] [-wX] [-d] [peer]"
+	echo "	-h		Show this help message"
+	echo "	-d		Enable debug mode"
+	echo "	-c[X]		Specify critical number of simultaneous channels"
+	echo "	-w[X]		Specify warning number of simultaneous channels"
+	echo "	[peer]		Specify the peer name"
+}
+
+function debug() {
+	[ $DEBUG -eq 1 ] && echo -e "$( date "+%Y/%m/%d %H:%M:%S" ) - $1"
+}
+
+CRITICAL=10
+WARNING=8
+PEER=""
+DEBUG=0
+
+for arg in $@
+do
+	if [ $( echo $arg|egrep -c '^-[cwdh][0-9]*$' ) -gt 0 ]
+	then
+		a=$( echo $arg|sed 's/^-\([cwdh]\).*$/\1/' )
+		v=$( echo $arg|sed 's/^-[cwdh]//' )
+		case $a in
+			c)
+				CRITICAL=$v
+			;;
+			w)
+				WARNING=$v
+			;;
+			d)
+				DEBUG=1
+			;;
+			h)
+				usage
+				exit 0
+			;;
+		esac
+	else
+		PEER="$arg"
+	fi
+done
+
+[ -z "$PEER" ] && usage "You must specify peer name" && exit 1
+
+debug "Parameters : Warning = $WARNING / Critical = $CRITICAL"
+[ $WARNING -gt $CRITICAL ] && usage "Warning number of simultaneous channels must be lower than critical one" && exit 1
+
+number=$( /usr/bin/sudo -u root /usr/sbin/rasterisk -rnx "core show channels concise"|cut -d'!' -f1|grep -Ec "^SIP/$PEER-" )
+if [ ! -n "$number" ]
+then
+	echo "UNKNOW - Fail to retreive number of simultaneous channels of SIP peer $PEER"
+	exit 3
+fi
+
+debug "Peer $PEER simultaneous channels : $number"
+
+if [ $number -gt $CRITICAL ]
+then
+	st='CRITICAL'
+	ec=2
+elif [ $number -gt $WARNING ]
+then
+	st='WARNING'
+	ec=1
+else
+	st=OK
+	ec=0
+fi
+echo  "$st - $number simultaneous channels with SIP peer $PEER|'simultaneous channels':$number;$WARNING;$CRITICAL;0;$"
+exit $ec