There is a detailed description at https://service.snom.com/display/wiki/LDAP+Directory.
| Setting | value |
|---|---|
| LDAP name filter | (&(|(sn=%)(l=%))(telephoneNumber=*)) |
| LDAP number filter | (&(sn=*)(telephoneNumber=%)) |
| Server Address | guru3.eventphone.de |
| Port | 389 |
| Base | dc=eventphone,dc=de / dc=EPVPN,dc=eventphone,dc=de |
| LDAP name attributes | sn l ou |
| LDAP number attributes | cn telephoneNumber |
| LDAP display name | %sn (%l) / %sn (%ou) |
| LDAP over TLS | optional - use Port 636 if on |
| Predict Text | on if you want to use T9 |