already foud the patch, but this is for implementing the AT commands for a different device. In principle it should be easy to port to the n900. But this implementation uses dbus links to a contact/addressbook manager. I tried to look for something similar on the n900 but cannot find anything. I tried to find a dbus interface to osso-addressbook. There is a dbus service for oss-addressbook but I cannot find any info about that so don;t know if it is possible to retrieve contacts osso-addressbook via dbus. If anyone knows more about this we could try implement it.