The following directory/phonebook types are supported on the M100 and M500:

1. Local Directory
   
   • Contacts can be added from the M10 or M55/M58 handsets themselves
   • Maximum of 500 contacts on an M10, 400 contacts on an M55/M58
   • This is only supported locally on each device and cannot be imported/exported
   • If the handset is broken or not responding, the phonebook will be lost and not retrievable
     
     
2. Base Directory
   • This is hold locally on the base, available for all the handsets connected to it
   • Each contact can be manually added, removed or changed from the web interface
   • If you create some test contacts first, you can download the file to replicate and create the full phonebook
   • The whole phonebook can be manually uploaded from the web interface
   • It can be CSV or XML based
   • It supports up to 1000 contacts (50 pages, 20 contacts on each page on the WUI)
   • If you want to change a contact you can either do it via WUI or upload a new file, but it won't be done automatically
   • It doesn't require an external server as it's saved on the M100/M500
   • The CSV format is quite simple, as “John,Test,100,101,102,1,0”
   • The XML format is the one below, but creating a test contact and downloading the file is the best way to go to start creating your phonebook
     <?xml version="1.0" encoding="utf8"?>
     <directory>
     <DIR_GROUP>
     <DIR_ENTRY>
     <DIR_ENTRY_NAME_FIRST>John</DIR_ENTRY_NAME_FIRST>
     <DIR_ENTRY_NAME_LAST>Test</DIR_ENTRY_NAME_LAST>
     <DIR_ENTRY_NUMBER_WORK>100</DIR_ENTRY_NUMBER_WORK>
     <DIR_ENTRY_LINE_NUMBER>1</DIR_ENTRY_LINE_NUMBER>
     <DIR_ENTRY_RINGER>0</DIR_ENTRY_RINGER>
     </DIR_ENTRY>
     </DIR_GROUP>
     </directory>
     
     
3. LDAP
   • Unlimited entries (depending on the server)
   • Central LDAP server required
   • The configuration on the base depends strictly on the LDAP server
     
     
4. Remote XML
   • Up to three different phonebooks can be set on an M100/M500
   • They need to be hosted as an XML file onto an external server
   • On the base, you only need to configure the URL to the file on the server
   • You can enable/disable the lookup on incoming/outgoing calls
   • This allows up to 5000 contacts
   • The format of the XML file is the same as the Base Directory, so you can add a contact manually from the WUI and download the file to create the whole phonebook
   • If you change the file on the server, the base will download it every time the handset access the phonebook, so every change can be reflected immediately