2.  Password for extension registration, web GUI admin login, LDAP and LDAP 
sync requires alphanumeric characters containing at least two categories 
of the following, with a minimum length of 4 characters. 
•  Numeric digits 
•  Lowercase alphabet characters 
•  Uppercase alphabet characters 
•  Special characters 
If enabled, random password will be generated when the extension is created. 
The default setting is "Yes". It is recommended to enable it for security purpose. 
If  enabled,  UCM6200  will  send  Email  notification  to  user  automatically  after 
editing extension settings or adding a new extension.   
If  set  to  "Yes",  users  could  disable  the  extension  range  pre-
configured/configured on the UCM6200. The default setting is "No". 
 
Note: 
It is recommended to keep the system assignment to avoid inappropriate usage 
and unnecessary issues. 
The default extension range assignment is: 
 
•  User Extensions: 1000-6299 
User Extensions is referring to the extensions created under web UI->PBX-
>Basic/Call Routes->Extensions page. 
 
•  Pick Extensions: 4000-4999 
This refers to the extensions that can be manually picked from end device 
when being provisioned by the UCM6200. There are two related options in 
zero config page->Auto Provision Settings, "Pick Extension Segment" and 
"Enable  Pick  Extension".  If  "Enable  Pick  Extension"  under  zero  config 
settings is selected, the extension list defined in "Pick Extension Segment" 
will be sent out to the device after receiving the device's request. This "Pick 
Extension  Segment"  should  be  a  subset  of  the  "Pick  Extensions"  range 
here.  This  feature  is  for  the  GXP  series  phones  that  support  selecting 
extension to be provisioned via phone's LCD. 
 
•  Auto Provision Extensions: 5000-6299 
This  sets  the  range  for  "Zero  Config  Extension  Segment"  which  is  the 
extensions can be assigned on the UCM6200 to provision the end device. 
 
•  Conference Extensions: 6300-6399 
•  Ring Group Extensions: 6400-6499