diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..8d87b1d
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+node_modules/*
diff --git a/cli.js b/cli.js
new file mode 100644
index 0000000..41a8491
--- /dev/null
+++ b/cli.js
@@ -0,0 +1,14 @@
+const _ = require('lodash');
+const optimist = require('optimist');
+const options = require('./options');
+const argv = _.reduce(cliOptions, (optimist, option, name) => {
+  return optimist.options(name, option);
+}, optimist);
+
+if (argv.help) {
+    optimist.showHelp();
+    return;
+}
+
+module.exports = require('smpp').spawnServer(argv);
+
diff --git a/index.js b/index.js
new file mode 100644
index 0000000..1ba8b0a
--- /dev/null
+++ b/index.js
@@ -0,0 +1,3 @@
+'use strict';
+
+module.exports = require('./smpp');
\ No newline at end of file
diff --git a/logger.js b/logger.js
new file mode 100644
index 0000000..4c92ab9
--- /dev/null
+++ b/logger.js
@@ -0,0 +1,13 @@
+'use strict';
+
+const winston = require('winston');
+const logger = new (winston.Logger)({
+    transports: [
+        new (winston.transports.Console)({ 
+          json: false, 
+          timestamp: true 
+        })
+    ]
+  });
+    
+module.exports = logger;
diff --git a/options.js b/options.js
new file mode 100644
index 0000000..a68dcaf
--- /dev/null
+++ b/options.js
@@ -0,0 +1,29 @@
+module.exports = Object.freeze({
+  port: {
+    default: 2775,
+    alias: 'p',  
+    describe: 'Port which server listen to.'
+  },
+  ddmin: {
+    default: 0, 
+    describe: 'Minimum delay after submit_sm requested and deliver_sm request to ESME.'
+  },
+  ddmax: {
+    default: 0, 
+    describe: 'Maximum delay after submit_sm requested and deliver_sm request to ESME.'
+  },
+  statuses: {
+    alias: 's', 
+    default: 'delivered', 
+    describe: "Comma separated list of statuses, server send in deliver_sm request to ESME."
+  },
+  auth: {
+    default: 'user:pass', 
+    describe: 'Comma separated auth credentials in format [system_id]:[password]'
+  },
+  help: {
+    default: false, 
+    alias: 'h', 
+    describe: 'Current help.'
+  }
+});
\ No newline at end of file
diff --git a/package.json b/package.json
index f4649b4..84dc4b1 100644
--- a/package.json
+++ b/package.json
@@ -15,5 +15,11 @@
   "bugs": {
     "url": "https://github.com/lab-coop/fakesmpp/issues"
   },
-  "homepage": "https://github.com/lab-coop/fakesmpp#readme"
+  "homepage": "https://github.com/lab-coop/fakesmpp#readme",
+  "dependencies": {
+    "optimist": "^0.6.1",
+    "smpp": "^0.2.0",
+    "strftime": "^0.9.2",
+    "winston": "^2.2.0"
+  }
 }
diff --git a/smpp.js b/smpp.js
index 56ddfbc..dadb681 100644
--- a/smpp.js
+++ b/smpp.js
@@ -1,120 +1,105 @@
 /**
  * Fake SMPP.
  */
-var smpp = require('smpp');
-var winston = require('winston');
-var strftime = require('strftime');
-var optimist = require('optimist');
-var argv = optimist
-    .options('port', {alias: 'p', default: 2775, describe: 'Port which server listen to.'})
-    .options('ddmin', {default: 0, describe: 'Minimum delay after submit_sm requested and deliver_sm request to ESME.'}) // delivery min delay
-    .options('ddmax', {default: 0, describe: 'Maximum delay after submit_sm requested and deliver_sm request to ESME.'}) // delivery max delay
-    .options('statuses', {alias: 's', default: 'delivered', describe: "Comma separated list of statuses, server send in deliver_sm request to ESME."})
-    .options('auth', {default: 'user:pass', describe: 'Comma separated auth credentials in format [system_id]:[password]'})
-    .options('help', {default: false, alias: 'h', describe: 'Current help.'})
-    .argv;
+const _ = require('lodash');
+const smpp = require('smpp');
+const strftime = require('strftime');
+const optionsDefaults = _.mapValues(require('./options'), 'default');
 
-if (argv.help) {
-    optimist.showHelp();
-    return;
-}
+const logger = require('./logger');
+const Statuses = require('./statuses').Statuses;
 
-var Statuses = require('./statuses').Statuses;
-// Read auth data
-var auth_data = function(str) {
-    var auth = {};
-    str.split(",").map(function(str) {
-        var l = str.split(":");
-        if (l.length > 0 && l[0] != '') {
-            var val = "";
-            var key = l[0];
-            if (l.length > 1) {
-                val = l[1];
-            }
-            auth[key] = val;
-        }
-    });
+module.exports = Object.freeze({
+  spawnServer
+});
+
+function spawnServer(argv) {
+  // You may now use it as a package.json dependency
+  argv = _.defaults(argv, optionsDefaults);
+  
+  // Read auth data
+  const auth_data = (argv.auth || '').split(',').reduce((auth, str) => {
+    const pair = str.split(':');
+    if (pair.length && pair[0].length) {
+      auth[pair[0]] = pair[1] || '';
+    }
     return auth;
-}(argv.auth);
-// Init logger
-var logger = new (winston.Logger)({
-    transports: [
-        new (winston.transports.Console)({ json: false, timestamp: true })
-    ]});
+  });
 
-// List of statuses which we iterate in response.
-var statuses = new Statuses(argv.statuses.split(','));//.map(function (val) {return val.toUpperCase()}));
+  // List of statuses which we iterate in response.
+  var statuses = new Statuses(argv.statuses.split(','));//.map(function (val) {return val.toUpperCase()}));
 
-// Validate options
-if (argv.ddmax < argv.ddmin) {
-    logger.error("ddmin(%d) > ddmax(%d)", argv.ddmin, arg.ddmax);
-}
+  // Validate options
+  if (argv.ddmax < argv.ddmin) {
+      logger.error("ddmin(%d) > ddmax(%d)", argv.ddmin, arg.ddmax);
+  }
+  const server = smpp.createServer(function(session) {
+  session.on('bind_transceiver', function(pdu) {
+    logger.info("bind_transceiver requested.", {system_id: pdu.system_id});
+    session.on('submit_sm', function(pdu) {
+        var msg_received_on = new Date();
+        var r = Math.floor(Math.random() * (99 - 10) + 10);
+        var msg_id = ""+msg_received_on.getTime() + "." + r;
+        var delivery_delay = getDeliveryDelay(argv.ddmin, argv.ddmax);
+        logger.info("Msg was received, id=%s assigned.", msg_id, {From: pdu.source_addr, To: pdu.destination_addr, ShortMsg: pdu.short_message.message.toString(), MsgPayload: pdu.message_payload.message.toString(), ScheduleDeliveryTime: pdu.schedule_delivery_time});
+        
+        logger.info("Send submit_sm_resp for id=%s.", msg_id);
+        session.send(pdu.response({
+            message_id: msg_id,
+        }));
 
-var server = smpp.createServer(function(session) {
-    session.on('bind_transceiver', function(pdu) {
-        logger.info("bind_transceiver requested.", {system_id: pdu.system_id});
-        session.on('submit_sm', function(pdu) {
-            var msg_received_on = new Date();
-            var r = Math.floor(Math.random() * (99 - 10) + 10);
-            var msg_id = ""+msg_received_on.getTime() + "." + r;
-            var delivery_delay = getDeliveryDelay(argv.ddmin, argv.ddmax);
-            logger.info("Msg was received, id=%s assigned.", msg_id, {From: pdu.source_addr, To: pdu.destination_addr, ShortMsg: pdu.short_message.message.toString(), MsgPayload: pdu.message_payload.message.toString(), ScheduleDeliveryTime: pdu.schedule_delivery_time});
-            
-            logger.info("Send submit_sm_resp for id=%s.", msg_id);
-            session.send(pdu.response({
-                message_id: msg_id,
-            }));
-
-            // Send request to ESME to confirm delivery
-            setTimeout(function() {
-                var status = statuses.next();
-                var dr = getDeliveryReceipt(msg_id, status, msg_received_on, new Date(), pdu.short_message.message.toString());
-                logger.info("delivery_sm.short_message=%s", dr);
-                logger.info("Send deliver_sm for id=%d with status.stat=%s, status.err=%s.", msg_id, status.stat, status.err);
-                session.deliver_sm({
-                    source_addr: pdu.source_addr,
-                    source_addr_ton: pdu.source_addr_ton,
-                    source_addr_npi: pdu.source_addr_npi,
-                    dest_addr_ton: pdu.dest_addr_ton,
-                    dest_addr_npi: pdu.dest_addr_npi,
-                    destination_addr: pdu.destination_addr,
-                    short_message: dr,
-                    esm_class: smpp.ESM_CLASS.MC_DELIVERY_RECEIPT,
-                    sequence_number: pdu.sequence_number,
-                }, function(pdu) {
-                    logger.info("deliver_sm_resp received.");
-                });
-            }, delivery_delay);
-        });
+        // Send request to ESME to confirm delivery
+        setTimeout(function() {
+            var status = statuses.next();
+            var dr = getDeliveryReceipt(msg_id, status, msg_received_on, new Date(), pdu.short_message.message.toString());
+            logger.info("delivery_sm.short_message=%s", dr);
+            logger.info("Send deliver_sm for id=%d with status.stat=%s, status.err=%s.", msg_id, status.stat, status.err);
+            session.deliver_sm({
+                source_addr: pdu.source_addr,
+                source_addr_ton: pdu.source_addr_ton,
+                source_addr_npi: pdu.source_addr_npi,
+                dest_addr_ton: pdu.dest_addr_ton,
+                dest_addr_npi: pdu.dest_addr_npi,
+                destination_addr: pdu.destination_addr,
+                short_message: dr,
+                esm_class: smpp.ESM_CLASS.MC_DELIVERY_RECEIPT,
+                sequence_number: pdu.sequence_number,
+            }, function(pdu) {
+                logger.info("deliver_sm_resp received.");
+            });
+        }, delivery_delay);
+    });
 
-        // Availability check
-        session.on('enquire_link', function(pdu) {
-            session.send(pdu.response());
-        });   
-        session.on('unbind', function(pdu) {
-            session.send(pdu.response());
-            session.close();
-        });
-        // we pause the session to prevent further incoming pdu events,
-        // untill we authorize the session with some async operation.
-        session.pause();
-        checkAsyncUserPass(pdu.system_id, pdu.password, function(err) {
-            if (err) {
-                logger.error("bind_transceiver failed. Incorrert credentials.");
-                session.send(pdu.response({
-                    command_status: smpp.ESME_RBINDFAIL
-                }));
-                session.close();
-                return;
-            }
-            session.send(pdu.response());
-            logger.info("bind_transceiver completed successfully.", {system_id: pdu.system_id});
-            session.resume();
-        });
+    // Availability check
+    session.on('enquire_link', function(pdu) {
+      session.send(pdu.response());
+    });   
+    session.on('unbind', function(pdu) {
+      session.send(pdu.response());
+      session.close();
     });
-});
-server.listen(argv.port);
-logger.info("Server listen port #%d", argv.port);
+    // we pause the session to prevent further incoming pdu events,
+    // untill we authorize the session with some async operation.
+    session.pause();
+    checkAsyncUserPass(pdu.system_id, pdu.password, function(err) {
+        if (err) {
+          logger.error("bind_transceiver failed. Incorrert credentials.");
+          session.send(pdu.response({
+              command_status: smpp.ESME_RBINDFAIL
+          }));
+          session.close();
+          return;
+        }
+        session.send(pdu.response());
+        logger.info("bind_transceiver completed successfully.", {system_id: pdu.system_id});
+        session.resume();
+      });
+    });
+  });
+  server.listen(argv.port);
+  logger.info("Server listen port #%d", argv.port);
+  return server;
+}
 
 //
 // Check if system_id with password has access to send messages.