diff --git a/library/MGCP_Templates.ttcn b/library/MGCP_Templates.ttcn
index f720553..506100f 100644
--- a/library/MGCP_Templates.ttcn
+++ b/library/MGCP_Templates.ttcn
@@ -286,6 +286,22 @@
 		}
 	}
 
+	function f_mgcp_contains_par(MgcpMessage msg, MgcpInfoCode code) return boolean {
+		var MgcpParameterList pars;
+		if (ischosen(msg.command)) {
+			pars := msg.command.params;
+		} else {
+			pars := msg.response.params;
+		}
+		for (var integer i := 0; i < lengthof(pars); i := i + 1) {
+			var MgcpParameter par := pars[i];
+			if (par.code == code) {
+				return true;
+			}
+		}
+		return false;
+	}
+
 	function f_mgcp_extract_par(MgcpMessage msg, MgcpInfoCode code) return charstring {
 		var MgcpParameterList pars;
 		if (ischosen(msg.command)) {
@@ -317,6 +333,13 @@
 		return f_mgcp_extract_par(msg, code);
 	}
 
+	function f_MgcpCmd_contains_par(MgcpCommand cmd, MgcpInfoCode code) return boolean {
+		var MgcpMessage msg := {
+			command := cmd
+		}
+		return f_mgcp_contains_par(msg, code);
+	}
+
 	function f_MgcpResp_extract_conn_id(MgcpResponse resp) return MgcpConnectionId {
 		return str2hex(f_MgcpResp_extract_par(resp, "I"));
 	}