Trying to setup my mobile connection I found that the database is not up to date for Greece.

Telestet was renamed to Tim and then was renamed Wind. So I removed the old entry(telestet) and changed TIM to Wind (which does not need a username or password).

Index: serviceproviders.xml
===================================================================
--- serviceproviders.xml        (revision 95)
+++ serviceproviders.xml        (working copy)
@@ -1636,27 +1636,16 @@
                <dns>195.167.65.194</dns>
        </provider>
        <provider>
-               <name>Telestet</name>
-               <gsm>
-                       <apn>gnet.b-online.gr</apn>
-               </gsm>
-               <password>24680</password>
-               <dns>212.152.79.19</dns>
-               <dns>212.152.79.20</dns>
-       </provider>
-       <provider>
                <name>Vodafone</name>
                <gsm>
                        <apn>internet</apn>
                </gsm>
        </provider>
        <provider>
-               <name>TIM</name>
+               <name>Wind</name>
                <gsm>
                        <apn>gint.b-online.gr</apn>
                </gsm>
-               <username>web</username>
-               <password>web</password>
        </provider>
 </country>