another try

sms_received.sh

@@ -41,9 +41,12 @@ PHONE="$SMS_1_NUMBER" # gammu-smsd
 [[ ${PHONE#"$prefix"} != "${PHONE}" ]] && phone=0${PHONE#"$prefix"} || phone="${PHONE}" 
 
 TEXT=""
+
+PROGRAM=/bin/echo
 for i in `seq $SMS_MESSAGES` ; do
-    TEXT="$TEXT $(cat /var/spool/gammu/inbox/${SMS_${i}_TEXT})"
+    eval "$PROGRAM \"\${SMS_${i}_NUMBER}\" \"\${SMS_${i}_TEXT}\"" >> /tmp/sms_message
 done
+
 [[ ! ${TEXT} ]] && TEXT="$2" # CLI MODE
 [[ "${TEXT}" == "" ]] && echo "SMS IS EMPTY - EXIT -" && exit 1