User's Manual Part 1
Firmware Version 1.0.0.1  UCM6200 Series IP PBX User Manual  Page 138 of 320
address. 
Require Call Token 
Configure to enable/disable requiring call token. If set to "Auto", it might 
lock out users who depend on backward compatibility when peer 
authentication credentials are shared between physical endpoints. The 
default setting is "Yes". 
Other Settings 
SRTP 
Enable SRTP for the call. The default setting is "No". 
Fax Mode 
Select Fax Mode for this user. The default setting is “None”. 
  None: Disable Fax. 
  Fax Detect: Fax signal from the user/trunk during the call can be 
detected and the received Fax will be sent to the Email address 
configured for this extension. If no Email address can be found for the 
user, the Fax will be sent to the default Email address configured in 
Fax setting page under web UI->PBX->Internal Options->Fax/T.38.
Strategy 
This option controls how the extension can be used on devices within 
different types of network. 
 Allow All 
Device in any network can register this extension. 
  Local Subnet Only 
Only the user in specific subnet can register this extension. Up to 
three subnet addresses can be specified. 
 A Specific IP Address.  
Only the device on the specific IP address can register this extension.
The default setting is "Allow All". 
Skip Trunk Auth 
If enable “All”, users do not need to enter password when making an 
outbound call. If enable “Follow Me”, the call can dial out via follow me 
without password. 
Codec Preference 
Select audio and video codec for the extension. The available codecs are: 
PCMU, PCMA, GSM, AAL2-G.726-32, G.722, G.729, G.723, iLBC, 
ADPCM, LPC10, H.264, H.263, H.263p and VP8. 
SEARCHANDEDITEXTENSION
All the UCM6200 extensions are listed under Web GUI->PBX->Basic/Call Routes->Extensions, with 
status, Extension, CallerID Name, Technology (SIP, IAX and FXS), IP and Port. Each extension has a 
checkbox for users to "Modify Selected Extensions" or "Delete Selected Extensions". Also, options 
"Edit”
, "Reboot"   and "Delete"    are available per extension. User can search an extension by 
specifying the extension number to find an extension quickly. 










