diff --git a/core/contacts/app_languages.php b/core/contacts/app_languages.php
index e8825a4c77..0a86f3826a 100644
--- a/core/contacts/app_languages.php
+++ b/core/contacts/app_languages.php
@@ -1793,6 +1793,31 @@ $text['message-uploaded']['zh-cn'] = "文件已上传";
 $text['message-uploaded']['ja-jp'] = "ファイルがアップロードされました";
 $text['message-uploaded']['ko-kr'] = "업로드된 파일";
 
+$text['message-speed_dial_exists']['en-us'] = "Speed Dial Number Already Exists";
+$text['message-speed_dial_exists']['en-gb'] = "Speed Dial Number Already Exists";
+$text['message-speed_dial_exists']['ar-eg'] = "رقم الاتصال السريع موجود بالفعل";
+$text['message-speed_dial_exists']['de-at'] = "Kurzwahlnummer existiert bereits";
+$text['message-speed_dial_exists']['de-ch'] = "Kurzwahlnummer existiert bereits";
+$text['message-speed_dial_exists']['de-de'] = "Kurzwahlnummer existiert bereits";
+$text['message-speed_dial_exists']['es-cl'] = "El número de marcación rápida ya existe";
+$text['message-speed_dial_exists']['es-mx'] = "El número de marcación rápida ya existe";
+$text['message-speed_dial_exists']['fr-ca'] = "Le numéro abrégé existe déjà";
+$text['message-speed_dial_exists']['fr-fr'] = "Le numéro de numérotation rapide existe déjà";
+$text['message-speed_dial_exists']['he-il'] = "מספר חיוג מהיר כבר קיים";
+$text['message-speed_dial_exists']['it-it'] = "Il numero di selezione rapida esiste già";
+$text['message-speed_dial_exists']['ka-ge'] = "სწრაფი აკრეფის ნომერი უკვე არსებობს";
+$text['message-speed_dial_exists']['nl-nl'] = "Snelkiesnummer bestaat al";
+$text['message-speed_dial_exists']['pl-pl'] = "Numer szybkiego wybierania już istnieje";
+$text['message-speed_dial_exists']['pt-br'] = "Número de discagem rápida já existe";
+$text['message-speed_dial_exists']['pt-pt'] = "O número de marcação rápida já existe";
+$text['message-speed_dial_exists']['ro-ro'] = "Numărul de apelare rapidă există deja";
+$text['message-speed_dial_exists']['ru-ru'] = "Номер быстрого набора уже существует";
+$text['message-speed_dial_exists']['sv-se'] = "Snabbuppringningsnummer finns redan";
+$text['message-speed_dial_exists']['uk-ua'] = "Номер швидкого набору вже існує";
+$text['message-speed_dial_exists']['zh-cn'] = "快速拨号号码已存在";
+$text['message-speed_dial_exists']['ja-jp'] = "短縮ダイヤル番号は既に存在します";
+$text['message-speed_dial_exists']['ko-kr'] = "단축번호가 이미 존재합니다";
+
 $text['label-voice']['en-us'] = "Voice";
 $text['label-voice']['en-gb'] = "Voice";
 $text['label-voice']['ar-eg'] = "صوت";
diff --git a/core/contacts/contact_edit.php b/core/contacts/contact_edit.php
index d8d1767eab..75e7caf809 100644
--- a/core/contacts/contact_edit.php
+++ b/core/contacts/contact_edit.php
@@ -367,7 +367,33 @@
 			if (!empty($contact_phones)) {
 				foreach ($contact_phones as $row) {
 					if (!empty($row['phone_number'])) {
-						//add the speed dial
+
+						//if speed dial number already exists, empty before save
+						if (!empty($row["phone_speed_dial"])) {
+							$phone_speed_dial_exists = false;
+							if (is_numeric($row["phone_speed_dial"])) {
+								$sql = "select count(contact_phone_uuid) ";
+								$sql .= "from v_contact_phones ";
+								$sql .= "where phone_speed_dial = :phone_speed_dial ";
+								$sql .= "and domain_uuid = :domain_uuid ";
+								if ($action == "update" && is_uuid($row["contact_phone_uuid"])) {
+									$sql .= "and contact_phone_uuid <> :contact_phone_uuid ";
+									$parameters['contact_phone_uuid'] = $row["contact_phone_uuid"];
+								}
+								$parameters['phone_speed_dial'] = $row["phone_speed_dial"];
+								$parameters['domain_uuid'] = $_SESSION['domain_uuid'];
+								$database = new database;
+								if (!empty($database->execute($sql, $parameters, 'column'))) {
+									$phone_speed_dial_exists = true;
+								}
+								unset($sql, $parameters);
+							}
+							if (!is_numeric($row["phone_speed_dial"]) || $phone_speed_dial_exists) {
+								message::add($text['message-speed_dial_exists'],'negative');
+								unset($row["phone_speed_dial"]);
+							}
+						}
+
 						$array['contacts'][0]['contact_phones'][$y]['domain_uuid'] = $_SESSION['domain_uuid'];
 						$array['contacts'][0]['contact_phones'][$y]['contact_uuid'] = $contact_uuid;
 						$array['contacts'][0]['contact_phones'][$y]['contact_phone_uuid'] = $row["contact_phone_uuid"];
diff --git a/core/contacts/contact_phone_edit.php b/core/contacts/contact_phone_edit.php
index c999eb7aec..acb196b05f 100644
--- a/core/contacts/contact_phone_edit.php
+++ b/core/contacts/contact_phone_edit.php
@@ -155,6 +155,32 @@
 						unset($sql, $parameters);
 					}
 
+				//if speed dial number already exists, empty before save
+					if (!empty($phone_speed_dial)) {
+						$phone_speed_dial_exists = false;
+						if (is_numeric($phone_speed_dial)) {
+							$sql = "select count(contact_phone_uuid) ";
+							$sql .= "from v_contact_phones ";
+							$sql .= "where phone_speed_dial = :phone_speed_dial ";
+							$sql .= "and domain_uuid = :domain_uuid ";
+							if ($action == "update") {
+								$sql .= "and contact_uuid <> :contact_uuid ";
+								$parameters['contact_uuid'] = $contact_uuid;
+							}
+							$parameters['phone_speed_dial'] = $phone_speed_dial;
+							$parameters['domain_uuid'] = $domain_uuid;
+							$database = new database;
+							if (!empty($database->execute($sql, $parameters, 'column'))) {
+								$phone_speed_dial_exists = true;
+							}
+							unset($sql, $parameters);
+						}
+						if (!is_numeric($phone_speed_dial) || $phone_speed_dial_exists) {
+							message::add($text['message-speed_dial_exists'],'negative');
+							unset($phone_speed_dial);
+						}
+					}
+
 				//add the phone
 					if ($action == "add" && permission_exists('contact_phone_add')) {
 						$contact_phone_uuid = uuid();