diff --git a/README.md b/README.md
index ab6c24e..41c3240 100644
--- a/README.md
+++ b/README.md
@@ -43,19 +43,19 @@ Edit `config.example.php` and save as `config.php` or use an other name of your
 ### List all commands
 
 ```console
-./fbconvertconv list
+./fbcontactconv list
 ```
 
 ### Complete processing
 
 ```console
-./fbconvertconv run
+./fbcontactconv run
 ```
 
 ### Get help for a command
 
 ```console
-./fbconvertconv run -h
+./fbcontactconv run -h
 ```
 
 ### Export phonebooks
diff --git a/composer.json b/composer.json
index 513b40f..5af50c8 100644
--- a/composer.json
+++ b/composer.json
@@ -10,10 +10,10 @@
         }
     ],
     "require": {
-        "php": "^7.0",
-        "symfony/console": "^3.0",
-        "blacksenator/fritzsoap": "^2.1",
-        "blacksenator/fritzdbf": "^1.4"
+        "php": ">=7.0",
+        "symfony/console": ">=3.0",
+        "blacksenator/fritzsoap": ">=2.1",
+        "blacksenator/fritzdbf": ">=1.4"
     },
     "autoload": {
         "psr-4": {
@@ -23,6 +23,6 @@
         "files": ["src/functions.php"]
     },
     "require-dev": {
-        "phpunit/phpunit": "^6"
+        "phpunit/phpunit": ">=6"
     }
 }
diff --git a/config.example.php b/config.example.php
index 63f6b01..585ba81 100644
--- a/config.example.php
+++ b/config.example.php
@@ -20,6 +20,16 @@
             'path' => '',
             'file' => 'LocalPhonebook.xml',
         ],
+        'Yealink2' => [
+            'xsl' => 'Yealink_2.xsl',
+            'path' => '',
+            'file' => 'LocalPhonebook2.xml',
+        ],
+        'Yealink3' => [
+            'xsl' => 'Yealink_3.xsl',
+            'path' => '',
+            'file' => 'LocalPhonebook3.xml',
+        ]
         'snom' => [
             'xsl' => 'snom.xsl',
             'path' => '',
diff --git a/lib/Yealink_3.xsl b/lib/Yealink_3.xsl
new file mode 100644
index 0000000..5729215
--- /dev/null
+++ b/lib/Yealink_3.xsl
@@ -0,0 +1,51 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Transform FRITZ!Box telephone book into Yealink IP phonebook -->
+<!-- Copyright Volker Püschel -->
+<!-- MIT Licence -->
+<xsl:stylesheet version="1.0"
+    xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
+    <xsl:output method="xml" indent="yes" encoding="utf-8" />
+
+
+
+    <xsl:template match="phonebooks/phonebook">
+        <root_contact>
+            <xsl:apply-templates select="contact" />
+        </root_contact>
+    </xsl:template>
+
+    <xsl:template match="contact">
+        <contact>
+            <xsl:apply-templates select="person/realName | telephony/number" />
+            <xsl:attribute name="line">0</xsl:attribute>
+            <xsl:attribute name="ring">Auto</xsl:attribute>
+            <xsl:attribute name="default_photo">Resource:icon_family_b.png</xsl:attribute>
+            <xsl:attribute name="selected_photo">0</xsl:attribute>
+            <xsl:attribute name="group_id_name">All Contacts</xsl:attribute>
+        </contact>
+    </xsl:template>
+
+    <xsl:template match="person/realName">
+        <xsl:attribute name="display_name">
+            <xsl:value-of select="." />
+        </xsl:attribute>
+    </xsl:template>
+
+    <xsl:template match="telephony/number">
+        <!-- exclude fax numbers-->
+        <xsl:if test="@type!='fax_work'">
+            <xsl:choose>
+                <xsl:when test="@type='work'">
+                    <xsl:attribute name="office_number"><xsl:value-of select="." /></xsl:attribute>
+                </xsl:when>
+                <xsl:when test="@type='mobile'">
+                    <xsl:attribute name="mobile_number"><xsl:value-of select="." /></xsl:attribute>
+                </xsl:when>
+                <xsl:otherwise>
+                    <xsl:attribute name="other_number"><xsl:value-of select="." /></xsl:attribute>
+                </xsl:otherwise>
+            </xsl:choose>
+        </xsl:if>
+    </xsl:template>
+
+</xsl:stylesheet>
\ No newline at end of file
diff --git a/src/RunCommand.php b/src/RunCommand.php
index 1d2c6c9..ba075e9 100644
--- a/src/RunCommand.php
+++ b/src/RunCommand.php
@@ -20,10 +20,11 @@ protected function configure()
         $this->addConfig();
     }
 
-    protected function execute(InputInterface $input, OutputInterface $output)
+    protected function execute(InputInterface $input, OutputInterface $output): int
     {
         $this->loadConfig($input);
         error_log('Converting FRITZ!Box contacts...');
         convertFBphonebook($this->config);
+	    return 0;
     }
 }