User's Manual
Firmware Version 1.0.0.5 
UCM6510 IP PBX User Manual 
Page 61 of 192 
  User Random Password. 
A  random  secure  password  will  be  automatically  generated.  It  is 
recommended to use this password for security purpose. 
  Use Extension as Password. 
  Enter a password to be used on all the extensions in the batch. 
Voicemail Password 
Configure Voicemail password (digits only) for the users. 
  User Random Password.   
A random  password in digits  will be automatically generated. It is 
recommended to use this password for security purpose. 
  Use Extension as Password. 
  Enter a password to be used on all the extensions in the batch. 
Ring Timeout 
Configure  the  number  of  seconds  to  ring  the  user  before  the  call  is 
forwarded to voicemail (voicemail is enabled) or hang up (voicemail is 
disabled). If not specified, the default ring timeout is 60 seconds on the 
UCM6510,  which  can  be  configured  in  the  global  ring  timeout  setting 
under web GUI->Internal Options->IVR Prompt: General Preference. 
The valid range is between 5 seconds and 600 seconds. 
Note: 
If  the  end  point  also  has  a  ring  timeout  configured,  the  actual  ring 
timeout used is the shortest time set by either device. 
Auto Record 
Enable  automatic  recording  for  the  calls  using  this  extension.  The 
default setting is disabled. The recording files will be saved in external 
storage  if  plugged  in  and  can  be  accessed  under  web 
GUI->CDR->Recording Files. 
Skip Voicemail Password 
Verification 
When  user  dials  voicemail  code,  the  password  verification  IVR  is 
skipped. If  enabled, this would allow one-button voicemail access. By 
default this option is disabled. 
SIP Settings 
NAT 
Use NAT when the PBX is on a public IP communicating with devices 
hidden behind NAT (e.g., broadband router). If there is one-way audio 
issue, usually it's related to NAT configuration or Firewall's support of 
SIP and RTP ports. The default setting is enabled. 
Can Reinvite 
By  default,  the  PBX  will  route  the  media  steams  from  SIP  endpoints 
through  itself.  If  enabled,  the  PBX  will  attempt  to  negotiate  with  the 
endpoints to route the media stream directly. It is not always possible for 
the  PBX  to  negotiate  endpoint-to-endpoint  media  routing.  The  default 
setting is "No". 
DTMF Mode 
Select DTMF mode for the user to send DTMF. The default setting is 










