diff --git a/docs/index.rst b/docs/index.rst
index 2272f05..813b598 100644
--- a/docs/index.rst
+++ b/docs/index.rst
@@ -26,3 +26,4 @@ LDAP Tool Box White Pages documentation
    vcardexport.rst
    updateinfos.rst
    tooltips.rst
+   patterns.rst
diff --git a/docs/patterns.rst b/docs/patterns.rst
new file mode 100644
index 0000000..e9358e6
--- /dev/null
+++ b/docs/patterns.rst
@@ -0,0 +1,20 @@
+Patterns
+========
+
+You can define a pattern to control edition of any attribute.
+
+By default no patterns are defined. You can create one by adding a property in attributes map and a message in the custom lang file by setting the ``pattern_item`` message.
+
+For example to add a pattern on phone item:
+
+* Edit or create ``/etc/service-desk/config.local.inc.php``:
+
+.. code-block:: php
+
+   $attributes_map['phone']['pattern'] = "\+33 [0-9] [0-9]{2} [0-9]{2} [0-9]{2} [0-9]{2}";
+
+* Edit or create ``/etc/service-desk/fr.inc.php``:
+
+.. code-block:: php
+
+   $messages['pattern_phone'] = "+33 1 23 45 67 89";
diff --git a/templates/updateinfos.tpl b/templates/updateinfos.tpl
index e815a72..c4180bc 100644
--- a/templates/updateinfos.tpl
+++ b/templates/updateinfos.tpl
@@ -38,6 +38,7 @@
                 {$type=$attributes_map.{$item}.type}
                 {$faclass=$attributes_map.{$item}.faclass}
                 {$multivalued=$attributes_map.{$item}.multivalued}
+                {$pattern=$attributes_map.{$item}.pattern}
                 {$required=0}
                 {if ($attributes_map.{$item}.mandatory|is_array)}
                 {if in_array('all',$attributes_map.{$item}.mandatory) or in_array('update',$attributes_map.{$item}.mandatory)}
@@ -60,10 +61,10 @@
                         <td>
                             {if $item|in_array:$update_items}
                                 {if !({$entry.$attribute.0})}
-                                {include 'value_editor.tpl' item=$item itemindex=0 value="" type=$type list=$item_list.$item multivalued=$multivalued required=$required truncate_value_after=10000}
+                                {include 'value_editor.tpl' item=$item itemindex=0 value="" type=$type list=$item_list.$item multivalued=$multivalued pattern=$pattern required=$required truncate_value_after=10000}
                                 {else}
                                     {foreach from=$entry.{$attribute} item=$value name=updatevalue}
-                                        {include 'value_editor.tpl' item=$item itemindex=$smarty.foreach.updatevalue.index multivalued=$multivalued required=$required value=$value type=$type list=$item_list.$item truncate_value_after=10000}
+                                        {include 'value_editor.tpl' item=$item itemindex=$smarty.foreach.updatevalue.index multivalued=$multivalued pattern=$pattern required=$required value=$value type=$type list=$item_list.$item truncate_value_after=10000}
                                     {/foreach}
                                 {/if}
                             {else}
diff --git a/templates/value_editor.tpl b/templates/value_editor.tpl
index 784a9cf..58e07ad 100644
--- a/templates/value_editor.tpl
+++ b/templates/value_editor.tpl
@@ -1,11 +1,11 @@
 <div class="value_editor_container {$type} my-1 row">
   <div class="value_editor_field col-10">
 {if $type eq 'text'}
-    <input type="text" name="{$item}{$itemindex}" class="form-control {if $required}border border-danger-subtle{/if}" value="{$value}" data-role="value" {if $required}required{/if} />
+    <input type="text" name="{$item}{$itemindex}" class="form-control {if $required}border border-danger-subtle{/if}" {if $pattern}pattern="{$pattern}"{if $msg_pattern_{$item}} title="{$msg_pattern_{$item}}"{/if}{/if} value="{$value}" data-role="value" {if $required}required{/if} />
 {else if $type eq 'mailto'}
-    <input type="email" name="{$item}{$itemindex}" class="form-control {if $required}border border-danger-subtle{/if}" value="{$value}" data-role="value" {if $required}required{/if} />
+    <input type="email" name="{$item}{$itemindex}" class="form-control {if $required}border border-danger-subtle{/if}" {if $pattern}pattern="{$pattern}"{if $msg_pattern_{$item}} title="{$msg_pattern_{$item}}"{/if}{/if} value="{$value}" data-role="value" {if $required}required{/if} />
 {else if $type eq 'tel'}
-    <input type="tel" name="{$item}{$itemindex}" class="form-control {if $required}border border-danger-subtle{/if}" value="{$value}" data-role="value" {if $required}required{/if} />
+    <input type="tel" name="{$item}{$itemindex}" class="form-control {if $required}border border-danger-subtle{/if}" {if $pattern}pattern="{$pattern}"{if $msg_pattern_{$item}} title="{$msg_pattern_{$item}}"{/if}{/if} value="{$value}" data-role="value" {if $required}required{/if} />
 {else if $type eq 'boolean'}
     <div class="form-check form-switch">
         <input class="form-check-input" type="checkbox" role="switch" name="{$item}{$itemindex}" {if $value eq 'TRUE'} checked{/if} value="TRUE" data-role="value" />
@@ -30,7 +30,7 @@
     <div class="z-3 position-absolute list-group dn_link_suggestions"></div>
     </div>
 {else}
-    <input type="text" name={$item} class="form-control {if $required}border border-danger-subtle{/if}" value="{$value}" data-role="value" {if $required}required{/if} />
+    <input type="text" name={$item} class="form-control {if $required}border border-danger-subtle{/if}" {if $pattern}pattern="{$pattern}"{if $msg_pattern_{$item}} title="{$msg_pattern_{$item}}"{/if}{/if} value="{$value}" data-role="value" {if $required}required{/if} />
 {/if}
   </div>
   <div class="value_editor_button col-2">