diff --git a/README.md b/README.md
index d36b107..2c345b0 100644
--- a/README.md
+++ b/README.md
@@ -75,7 +75,7 @@ ____
 ## `ovpn-client-management`.sh
 
 **Description:**  
-> Creating or deleting client config for openvpn and sending config and info to email.  
+> Creating or deleting client config for openvpn and sending config and info to email/telegram.  
 
 **Dependencies:**  
 >
diff --git a/ovpn-client-management.sh b/ovpn-client-management.sh
index 513c430..9d6a0d0 100644
--- a/ovpn-client-management.sh
+++ b/ovpn-client-management.sh
@@ -18,6 +18,7 @@
 #   1: "add|del" - add or delete client config
 #   2: username - client username
 #   3: password - client password
+#   4: additional - client description
 #   -f|--force - service will restart after username delete
 #
 # FUNCTIONS:
@@ -31,7 +32,7 @@
 #   1: message to print and logging
 #######################################
 addtologs() {
-  echo "$(date +'%Y.%m.%d-%H:%M:%S') $1" | tee -a "${logs}"
+  printf "%s\n" "$(date +'%Y.%m.%d-%H:%M:%S') $1" | tee -a "${logs}"
 }
 
 #######################################
@@ -85,7 +86,7 @@ checkroot() {
 #######################################
 createuser() {
   useradd "${clientname}" --shell /sbin/nologin
-  echo "${clientname}:${clientpass}" | chpasswd
+  printf "%s\n" "${clientname}:${clientpass}" | chpasswd
 }
 
 #######################################
@@ -123,15 +124,10 @@ createovpn() {
   cd "${easyrsadir}" || execerror ""
   {
     cat "${ovpncfgdef}"
-    echo -e '<ca>'
-    cat "${easyrsadir}/pki/ca.crt"
-    echo -e '</ca>\n<cert>'
-    cat "${easyrsadir}/pki/issued/${clientname}.crt"
-    echo -e '</cert>\n<key>'
-    cat "${easyrsadir}/pki/private/${clientname}.key"
-    echo -e '</key>\n<tls-auth>'
-    cat "${easyrsadir}/pki/private/ta.key"
-    echo -e '</tls-auth>'
+    printf "%s\n" "<ca>" "$(cat "${easyrsadir}/pki/ca.crt")" "</ca>"
+    printf "%s\n" "<cert>" "$(cat "${easyrsadir}/pki/issued/${clientname}.crt")" "</cert>"
+    printf "%s\n" "<key>" "$(cat "${easyrsadir}/pki/private/${clientname}.key")" "</key>"
+    printf "%s\n" "<tls-auth>" "$(cat "${easyrsadir}/pki/private/ta.key")" "</tls-auth>"
   } >> "${ovpncfgdir}/${clientname}.ovpn"
 }
 
@@ -148,8 +144,8 @@ createtars() {
   cp "${ovpncfgdir}/${clientname}.ovpn" "${ovpncfgdir}/vpn.cnf"
   sed -i "s#auth-user-pass#auth-user-pass /config/openvpn/vpn.txt#g" "${ovpncfgdir}/vpn.cnf"
   {
-    echo -e "${clientname}"
-    echo -e "${clientpass}"
+    printf "%s\n" "${clientname}"
+    printf "%s\n" "${clientpass}"
   } >> "${ovpncfgdir}/vpn.txt"
   cd "${ovpncfgdir}" || execerror ""
   tar cf "${clientname}.tar" --remove-files vpn.cnf vpn.txt
@@ -169,21 +165,20 @@ createinfo() {
   cd "${easyrsadir}" || execerror ""
   validuntil=$(${easyrsaexe} show-cert "${clientname}" | grep "Not After" | cut -d: -f2-)
 
-faqprofile=$(cat <<END
-OpenVPN Connect client:
-https://openvpn.net/client/
-OpenVPN GUI client:
-https://openvpn.net/community-downloads/
+  faqprofile=$(printf "%s\n" \
+    "OpenVPN Connect client:" \
+    "https://openvpn.net/client/" \
+    "OpenVPN GUI client:" \
+    "https://openvpn.net/community-downloads/" \
+    "" \
+    "${additional}" \
+    "" \
+    "User Login: \`${clientname}\`" \
+    "User Password: \`${clientpass}\`" \
+    "Time Expired: ${validuntil}"
+  )
 
-${additional}
-
-User Login: \`${clientname}\`
-User Password: \`${clientpass}\`
-Time Expired: ${validuntil}
-END
-)
-
-  echo -e "${faqprofile}" > "${ovpncfgdir}/${clientname}.info"
+  printf "%s\n" "${faqprofile}" > "${ovpncfgdir}/${clientname}.info"
 }
 
 #######################################
@@ -213,6 +208,38 @@ startsendmail() {
   addtologs "sent mail with subject '${subj}'"
 }
 
+#######################################
+# Send telegram notification about client config
+# Globals:
+#   clientname
+#   faqprofile
+#   ovpncfgdir
+# Arguments:
+#   None
+#######################################
+startsendtlgm() {
+  (
+    API_KEY=$(grep "API_KEY=" /usr/local/bin/sendtelegram.config | cut -d= -f2)
+    CHAT_ID=$(grep "CHAT_ID=" /usr/local/bin/sendtelegram.config | cut -d= -f2)
+    THRD_ID=$(grep "THRD_ID=" /usr/local/bin/sendtelegram.config | cut -d= -f2)
+    API_URL="https://api.telegram.org/bot${API_KEY}/sendMediaGroup?chat_id=${CHAT_ID}"
+
+    if grep -q "_" <<< "${CHAT_ID}"; then
+      THRD_ID=$(printf "%s\n" "${CHAT_ID}" | cut -d_ -f2)
+      CHAT_ID=$(printf "%s\n" "${CHAT_ID}" | cut -d_ -f1)
+    fi
+    if [ -n "${THRD_ID}" ]; then
+      API_URL="${API_URL}&message_thread_id=${THRD_ID}"
+    fi
+
+    curl -s -o /dev/null \
+         -F "media=[{\"type\": \"document\", \"media\": \"attach://ovpn\", \"caption\": \"${faqprofile}\", \"parse_mode\": \"Markdown\"}, {\"type\": \"document\", \"media\": \"attach://tars\" }]" \
+         -F "ovpn=@${ovpncfgdir}/${clientname}.ovpn" \
+         -F "tars=@${ovpncfgdir}/${clientname}.tar" \
+        "${API_URL}"
+  )
+  addtologs "sent telegram media with ${clientname}.ovpn client profile"
+}
 
 #######################################
 # Deleting linux user
@@ -329,6 +356,7 @@ if checkroot; then
       createtars && addtologs "created tar with config file for ${clientname}"
       createinfo && addtologs "created info file for ${clientname}"
       startsendmail
+      startsendtlgm
     fi
   elif [ "${clienttodo}" == "del" ] && [ -n "${clientname}" ]; then
     if id -u "${clientname}" >/dev/null 2>&1 || \
@@ -349,6 +377,7 @@ if checkroot; then
     fi
   else
     printf "%s\n" "Usage example: $0 'add' 'username(surname)' 'password(not less 8 symbols)'"
+    printf "%s\n" "Usage example: $0 'add' 'username(surname)' 'password(not less 8 symbols)' 'additional client description'"
     printf "%s\n" "Usage example: $0 'del' 'username(surname)'"
     printf "%s\n" "Usage example: $0 'del' 'username(surname)' -f"
   fi