Grandstream Networks UCM630 Series User Manual page 175

If enabled, the SIP INVITE message sent to the trunk will contain PPI (P-Preferred-
Identity) header. The default setting is "No".
Send PPI Header
Note: "Send PPI Header" and "Send PAI Header" cannot be enabled at the same
time. Only one of the two headers can be contained in SIP INVITE message.
PPI Mode
If enabled, the SIP INVITE message sent to the trunk will contain PAI (P-Asserted-
Identity) header including configured PAI Header. The default setting is "No".
Send PAI Header
Note: "Send PPI Header" and "Send PAI Header" cannot be enabled at the same
time. Only one of the two headers can be contained in the SIP INVITE message.
If "Send PAI Header" is enabled and "PAI Header" is configured as "123456" for
instance, the PAI header in the SIP message sent from the UCM will contain
"123456". If "Send PAI Header" is enabled and "PAI Header" is configured as
"empty", the PAI header in the SIP message sent from the UCM will contain the
PAI Header
original CID.
Note:
"Send PAI Header" needs to be enabled to use this feature
If enabled and "From User" is configured, the INVITE's From header will contain
DOD As From Name
the DOD number.
If checked and option "Send PAI Header" not checked, the PAI header will be
Passthrough PAI
passthrough from one side to the other side.
Header
Outbound Proxy
Select to enable outbound proxy in this trunk. The default setting is "No".
Support
When outbound proxy support is enabled, enter the IP address or URL of the
Outbound Proxy
outbound proxy.
It is used to set if the phone system will remove outbound proxy URI from the route
Remove OBP from
header. If is set to "Yes", it will remove the route header from SIP requests. The
Route
default setting is "No".
Configure where to get the destination ID of an incoming SIP call, from SIP
DID Mode
Request-line or To-header. The default is set to "Request-line".
Configure the default DTMF mode when sending DTMF on this trunk.
DTMF Mode

Default – Include the trunk's preferred CID (configured in Basic Settings)
in the PPI Header.

Original CID – Include the original CID in the PPI Header.

DOD Number – Include the trunk's DOD number in the PPI Header. If no
DOD number has been set, the trunk's preferred CID will be used.

Default: The global setting of DTMF mode will be used. The global setting
for DTMF Mode setting is under Web GUIPBX SettingsSIP
SettingsToS.
UCM630X Series User Manual
Version 1.0.2.25
P a g e | 175