Welltech SIPPBX 6200A - Manual (Page 40)

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support RFC2833 DTMF type. Then SIPPBX 6200A will transfer
the voice Codec to G.711 to make sure the DTMF detection is
working correctly
.
NAT Traversal If the Extension device is behind a device performing NAT, such
as firewall or router, and need to register to SIPPBX 6200A on
public network, then user has to enable this function. Enable
NAT Traversal to force SIPPBX 6200A to ignore the contact
information for the Extension and use the address from which
the packets are been received.
Fixed Trunk ID User can define a Fixed Trunk for a certain extension. When
such extension makes an outgoing call via routing table,
SIPPBX 6200A will check “Fixed Outgoing Call Rule” first. If
“Fixed Outgoing Call Rule” is enabled, SIPPBX 6200A will
confirm the Fix Trunk ID for the calling party. That means the
outbound call will be routed by Fixed Trunk ID, if you define the
Fixed Trunk ID for the calling party and you also enable “Fixed
Outgoing Call Rule”.
Note:
For more information about Fixed Outgoing Call Rule, please
refer to the user manual: CH3.1.8 Outgoing Routing.
Absolute Timeout Specific the timeout value for the outgoing calls. Please also go
to Outgoing Call Rule page to enable the Route Timeout
function.
BLF Enable BLF ( Busy line Field ) function for extensions.
Forward CallerID By default, the “from header of SIP invite” will contain the
caller’s line number when forward function is activated. But this
may make some errors occurred for some SIP Trunk services.
So we add this function in the “Extension Setting” page, let
user modify the line number of SIP Invite’ s from header, from
calling party’s number to the called party’s number.
Unconditional FWD Enable Unconditional forward function for extensions.
No Answer FWD Enable No Answer forward function for extensions.
Busy FWD Enable Busy forward function for extensions.
Unavailable FWD Enable Unavailable forward function for extensions.
Comment You can enter a 20 bytes note for each extension here.
Mail Box User can disable or enable mail box function. If this function is
enabled, user could enter e-mail address for the Extension.
When having voice mail of incoming call left, system will send
this voice mail to the specified e-mail address. You can also