diff --git a/acs.coffee b/acs.coffee
index 4b66085..19ec12b 100644
--- a/acs.coffee
+++ b/acs.coffee
@@ -102,6 +102,13 @@ updateDevice = (currentRequest, actions, callback) ->
       updates["#{path}_writable"] = p[1] if p[1]?
       updates["#{path}_timestamp"] = now
 
+  if actions.customCommands?
+    for p in actions.customCommands
+      commandName = p[0]
+      updates["_customCommands.#{commandName}._value"] = p[1]
+      updates["_customCommands.#{commandName}._timestamp"] = now
+      updates["_customCommands.#{commandName}._commands"] = p[2] if p[2]?
+
   if Object.keys(updates).length > 0 or Object.keys(deletes).length > 0
     db.devicesCollection.update({'_id' : currentRequest.deviceId}, {'$set' : updates, '$unset' : deletes}, {}, (err, count) ->
       if (err)
diff --git a/config.coffee b/config.coffee
index 5c9e453..4b2781c 100644
--- a/config.coffee
+++ b/config.coffee
@@ -49,3 +49,5 @@ exports.ALIASES = aliases
 
 # load authentication scripts
 exports.auth = require('./config/auth')
+
+exports.CUSTOM_COMMANDS = require('./config/custom_commands')
diff --git a/config/custom_commands-sample.json b/config/custom_commands-sample.json
new file mode 100644
index 0000000..b9200a0
--- /dev/null
+++ b/config/custom_commands-sample.json
@@ -0,0 +1,3 @@
+{
+  "seowon_frequencies" : "/^[0-9]+\\-SWU\\%2D9200\\-[0-9A-Z]+$/"
+}
diff --git a/customCommands.coffee b/customCommands.coffee
new file mode 100644
index 0000000..6f7f3b3
--- /dev/null
+++ b/customCommands.coffee
@@ -0,0 +1,17 @@
+common = require './common'
+
+exports.execute = (deviceId, command, callback) ->
+  args = command.split(/\s+/)
+  f = args.shift()
+  c = args.shift()
+
+  file = require "./config/custom_commands/#{f}"
+  file[c](deviceId, args.join(' '), callback)
+
+
+exports.getCommands = (filename) ->
+  commands = []
+  f = require("./config/custom_commands/#{filename}")
+  for k,v of f
+    commands.push(k)
+  return commands
diff --git a/tasks.coffee b/tasks.coffee
index 8f7f1a5..e833295 100644
--- a/tasks.coffee
+++ b/tasks.coffee
@@ -2,6 +2,7 @@ config = require './config'
 common = require './common'
 db = require './db'
 mongodb = require 'mongodb'
+customCommands = require './customCommands'
 BATCH_SIZE = 16
 
 exports.STATUS_QUEUED = STATUS_QUEUED = 0
@@ -11,12 +12,25 @@ exports.STATUS_FAULT = STATUS_FAULT = 3
 exports.STATUS_FINISHED = STATUS_FINISHED = 4
 
 
+initCustomCommands = (deviceId, callback) ->
+  updates = {customCommands : []}
+  counter = 0
+  for k,v of config.CUSTOM_COMMANDS
+    if eval(v).test(deviceId)
+      ++counter
+      customCommands.execute(deviceId, "#{k} init", (err, value) ->
+        updates.customCommands.push([k, value, customCommands.getCommands(k)])
+        callback(updates) if --counter <= 0
+      )
+  callback(updates) if counter <= 0
+
+
 this.init = (task, methodResponse, callback) ->
   if not task.subtask?
     task.subtask = {device : task.device, name : 'getParameterNames', parameterPath : '', nextLevel : false}
 
   if task.subtask.name == 'getParameterNames'
-    if methodResponse.faultcode?  
+    if methodResponse.faultcode?
       task.fault = methodResponse
       callback(null, STATUS_FAULT)
       return
@@ -42,7 +56,13 @@ this.init = (task, methodResponse, callback) ->
       # Ignore GetParameterValues errors. A workaround for the crappy Seewon devices.
       methodResponse = {parameterList : {}}
     this.getParameterValues(task.subtask, methodResponse, (err, status, cwmpResponse, deviceUpdates) ->
-      callback(err, status, cwmpResponse, deviceUpdates)
+      if status is STATUS_FINISHED
+        initCustomCommands(task.device, (updates) ->
+          common.extend(deviceUpdates, updates)
+          callback(err, status, cwmpResponse, deviceUpdates)
+        )
+      else
+        callback(err, status, cwmpResponse, deviceUpdates)
     )
   else
     throw Error('Unexpected subtask name')
@@ -335,5 +355,17 @@ this.download = (task, methodResponse, callback) ->
     callback(null, STATUS_FINISHED)
 
 
+this.customCommand = (task, methodResponse, callback) ->
+  # TODO implement timeout
+  customCommands.execute(task.device, task.command, (err, value) ->
+    if err?
+      task.fault = err
+      callback(null, STATUS_FAULT)
+    else
+      commandName = task.command.split(' ', 2)[0]
+      callback(null, STATUS_FINISHED, null, {customCommands : [[commandName, value]]})
+  )
+
+
 exports.task = (task, methodResponse, callback) ->
   this[task.name](task, methodResponse, callback)