diff --git a/debian/control b/debian/control
index 819ab4a..cfd9f08 100644
--- a/debian/control
+++ b/debian/control
@@ -18,6 +18,7 @@ Depends:
  lua-rex-pcre,
  lua-sec,
  lua5.2,
+ lua-ngcp-kamailio,
  prosody (>= 0.11~),
  ${misc:Depends},
 Description: ngcp modules for the prosody Jabber/XMPP server
diff --git a/plugins/mod_shard_client.lua b/plugins/mod_shard_client.lua
index cc7efa2..f124e75 100644
--- a/plugins/mod_shard_client.lua
+++ b/plugins/mod_shard_client.lua
@@ -7,7 +7,7 @@
 --
 module:set_global();
 local socket = require "socket"
-local ut = require "util.table";
+local ut = require "ngcp.utils";
 local logger = require "util.logger";
 local st = require "util.stanza";
 local new_xmpp_stream = require "util.xmppstream".new;
@@ -206,14 +206,14 @@ local function handle_send(event)
         queue[shard] = {};
     end
     if stanza.attr.via then
-        local via = ut.string.explode(';', stanza.attr.via);
+        local via = ut.explode(';', stanza.attr.via);
         module:log("debug", "via:%s", ut.table.tostring(via));
         if ut.table.contains(via, shard_name) then
             module:log("error", "loop detected, stanza[%s]", stanza);
             return;
         end
         table.insert(via, shard_name);
-        stanza.attr.via = ut.table.implode(';', via);
+        stanza.attr.via = ut.implode(';', via);
     else
         stanza.attr.via = shard_name;
     end
diff --git a/plugins/mod_sipwise_log_debug.lua b/plugins/mod_sipwise_log_debug.lua
index d0837c5..25d009f 100644
--- a/plugins/mod_sipwise_log_debug.lua
+++ b/plugins/mod_sipwise_log_debug.lua
@@ -8,7 +8,7 @@
 module:set_global();
 local jid = require "util.jid";
 local add_filter = require "util.filters".add_filter;
-local ut = require "util.table";
+local ut = require "ngcp.utils";
 local log = module._log;
 
 local config_default = {
diff --git a/plugins/mod_sipwise_pushd.lua b/plugins/mod_sipwise_pushd.lua
index 5654d2a..b617031 100644
--- a/plugins/mod_sipwise_pushd.lua
+++ b/plugins/mod_sipwise_pushd.lua
@@ -16,7 +16,7 @@ local jid_bare = require "util.jid".bare;
 local hosts = prosody.hosts;
 local http = require "net.http";
 local uuid = require "util.uuid";
-local ut = require "util.table";
+local ut = require "ngcp.utils";
 local set = require "util.set";
 local st = require "util.stanza";
 
diff --git a/plugins/mod_sipwise_redis_mucs.lua b/plugins/mod_sipwise_redis_mucs.lua
index 5f9dfdc..512b825 100644
--- a/plugins/mod_sipwise_redis_mucs.lua
+++ b/plugins/mod_sipwise_redis_mucs.lua
@@ -6,7 +6,7 @@
 --
 module:set_global();
 local set = require "util.set";
-local ut = require "util.table";
+local ut = require "ngcp.utils";
 local jid = require "util.jid";
 local redis = require 'redis';
 local redis_config = {
@@ -46,7 +46,7 @@ local function muc_destroyed(event)
 end
 
 local function split_key(key)
-	local t = ut.string.explode(':', key);
+	local t = ut.explode(':', key);
 	return t[1], t[2];
 end
 
diff --git a/plugins/mod_sipwise_redis_sessions.lua b/plugins/mod_sipwise_redis_sessions.lua
index 4ee8019..1ad7079 100644
--- a/plugins/mod_sipwise_redis_sessions.lua
+++ b/plugins/mod_sipwise_redis_sessions.lua
@@ -6,7 +6,7 @@
 --
 
 module:set_global();
-local ut = require "util.table";
+local ut = require "ngcp.utils";
 local jid = require "util.jid";
 local array = require "util.array";
 local redis = require 'redis';
@@ -69,7 +69,7 @@ local function resource_unbind(event)
 end
 
 local function split_key(key)
-	local t = ut.string.explode(':', key);
+	local t = ut.explode(':', key);
 	return t[1], t[2];
 end
 
diff --git a/plugins/mod_sipwise_vhosts_sql.lua b/plugins/mod_sipwise_vhosts_sql.lua
index 52bb846..041bddb 100644
--- a/plugins/mod_sipwise_vhosts_sql.lua
+++ b/plugins/mod_sipwise_vhosts_sql.lua
@@ -10,7 +10,7 @@ module:set_global();
 local DBI = require "DBI"
 local hostmanager = require "core.hostmanager";
 local configmanager = require "core.configmanager";
-local ut = require "util.table";
+local ut = require "ngcp.utils";
 local set = require "util.set";
 
 local connection;
diff --git a/plugins/mod_sipwise_vjud.lua b/plugins/mod_sipwise_vjud.lua
index 8dd026f..af503fd 100644
--- a/plugins/mod_sipwise_vjud.lua
+++ b/plugins/mod_sipwise_vjud.lua
@@ -13,7 +13,7 @@ local template = require "util.template";
 local rex = require "rex_pcre";
 local prosodyctl = require "util.prosodyctl"
 local dataforms_new = require "util.dataforms".new;
-local ut = require "util.table";
+local ut = require "ngcp.utils";
 local hosts = prosody.hosts;
 
 local form_layout = dataforms_new{
diff --git a/util/table.lua b/util/table.lua
deleted file mode 100644
index 0408c17..0000000
--- a/util/table.lua
+++ /dev/null
@@ -1,172 +0,0 @@
---
--- Copyright 2013 SipWise Team <development@sipwise.com>
---
--- This program is free software: you can redistribute it and/or modify
--- it under the terms of the GNU General Public License as published by
--- the Free Software Foundation, either version 3 of the License, or
--- (at your option) any later version.
---
--- This package is distributed in the hope that it will be useful,
--- but WITHOUT ANY WARRANTY; without even the implied warranty of
--- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
--- GNU General Public License for more details.
---
--- You should have received a copy of the GNU General Public License
--- along with this program. If not, see <http://www.gnu.org/licenses/>.
--- .
--- On Debian systems, the complete text of the GNU General
--- Public License version 3 can be found in "/usr/share/common-licenses/GPL-3".
---
--- Lua utils
-
-local type = type;
-local string = string;
-local t_insert, t_concat = table.insert, table.concat;
-local table = table;
-
--- copy a table
-function table.deepcopy(object)
-    local lookup_table = {}
-    local function _copy(obj)
-        if type(obj) ~= "table" then
-            return object
-        elseif lookup_table[obj] then
-            return lookup_table[obj]
-        end
-        local new_table = {}
-        lookup_table[object] = new_table
-        for index, value in pairs(obj) do
-            new_table[_copy(index)] = _copy(value)
-        end
-        return setmetatable(new_table, getmetatable(obj))
-    end
-    return _copy(object)
-end
-
-function table.contains(tbl, element)
-    if tbl then
-      for _, value in pairs(tbl) do
-        if value == element then
-          return true
-        end
-      end --for
-    end --if
-    return false
-end
-
--- add if element is not in table
-function table.add(t, element)
-  if not table.contains(t, element) then
-    t_insert(t, element)
-  end
-end
-
-function table.val_to_str ( v )
-  if "string" == type( v ) then
-    v = string.gsub( v, "\n", "\\n" )
-    if string.match( string.gsub(v,"[^'\"]",""), '^"+$' ) then
-      return "'" .. v .. "'"
-    end
-    return '"' .. string.gsub(v,'"', '\\"' ) .. '"'
-  else
-    return "table" == type( v ) and table.tostring( v ) or
-      tostring( v )
-  end
-end
-
-function table.key_to_str ( k )
-  if "string" == type( k ) and string.match( k, "^[_%a][_%a%d]*$" ) then
-    return k
-  else
-    return "[" .. table.val_to_str( k ) .. "]"
-  end
-end
-
-function table.tostring( tbl )
-  local result, done = {}, {}
-  for k, v in ipairs( tbl ) do
-    t_insert( result, table.val_to_str( v ) )
-    done[ k ] = true
-  end
-  for k, v in pairs( tbl ) do
-    if not done[ k ] then
-      t_insert( result,
-        table.key_to_str( k ) .. "=" .. table.val_to_str( v ) )
-    end
-  end
-  return "{" .. t_concat( result, "," ) .. "}"
-end
-
--- from table to string
--- t = {'a','b'}
--- implode(",",t,"'")
--- "'a','b'"
--- implode("#",t)
--- "a#b"
-function table.implode(delimiter, list, quoter)
-    local len = #list
-    if not delimiter then
-        error("delimiter is nil")
-    end
-    if len == 0 then
-        return nil
-    end
-    if not quoter then
-        quoter = ""
-    end
-    local str = quoter .. list[1] .. quoter
-    for i = 2, len do
-        str = str .. delimiter .. quoter .. list[i] .. quoter
-    end
-    return str
-end
-
-function table.keys(tbl)
-  local keys = {}
-  local n = 0
-
-  for k,_ in pairs(tbl) do
-    n = n+1
-    keys[n] = k
-  end
-  return keys
-end
-
--- from string to table
-function string.explode(delimiter, text)
-    local list = {}
-    local pos = 1
-
-    if not delimiter then
-        error("delimiter is nil")
-    end
-    if not text then
-        error("text is nil")
-    end
-    if string.find("", delimiter, 1) then
-        -- We'll look at error handling later!
-        error("delimiter matches empty string!")
-    end
-    while 1 do
-        local first, last = string.find(text, delimiter, pos)
-        -- print (first, last)
-        if first then
-            t_insert(list, string.sub(text, pos, first-1))
-            pos = last+1
-        else
-            t_insert(list, string.sub(text, pos))
-            break
-        end
-    end
-    return list
-end
-
-function string.starts(String,Start)
-   return string.sub(String,1,string.len(Start))==Start
-end
-
-function string.ends(String,End)
-   return End=='' or string.sub(String,-string.len(End))==End
-end
-
-return {table=table, string=string}