voice:5618 DigitMap syntax fix, rm brackets

net/asterisk/files/iopsys/lib/voice/config_asterisk.sh

@@ -995,7 +995,7 @@ configure_extensions_provider() {
           if [ -n "$prefixenable" -a "$prefixenable" = "1" ] ; then
             if [ -n "$prefixrange" ]; then
               #iterate through the prefix list seperated by "|" and add to extension file
-              prefixlist=$(echo $prefixrange | tr "|" "\n")
+              prefixlist=$(echo $prefixrange | tr -d "()" | tr "|" "\n")
               for prefixname in $prefixlist
               do
                  if [ -n "$prefixmaxdigits" ] ; then