Asus iPBX30 User Manual page 130

iPBX30 User Manual
outbound call authorization level, in other words, the rights to
call local city call, long distance call, international call or only
office call.
Note: Check the item "Recording" to assign this
extension into greeting voice announcement
recording function. The user can record voice
message into the extension.
• Server RTP relay
This function allows the user to choose if the IP-PBX server
should relay the RTP packets from this extension.
This function is useful when the extension client is located
behind some special NAT device and unable to make a VoIP
call successfully. The RTP packet relay will increase the
loading of the server, but this is a good solution to penetrate
NAT devices for VoIP client.
• Call group
This allows the user to assign a group number for identification
when this extension makes a call to other parties. This will
enable another extension to know the group number when it
receives a call.
• Pickup group
Pickup grouping allows you to group the different extensions
with the same working attribute into the same pickup group, so
the group members can answer their colleague's phone call if
they were temporary unavailable.
• NAT
You have to check this item with yes when the extension is
located behind an NAT device, and uncheck this item if the
extension is located at LAN environment.
• Availability checking intervals (ms)
Assign the time duration for IP-PBX server sending out an
availability check request to the extension device. Server will
change the extension available status to "Unreachable" if the
extension has no response to this checking request, and mark
the client status as on line if the device response in time.
Chapter 12
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