User's Manual Part 1

Firmware Version 1.0.0.1 UCM6200 Series IP PBX User Manual Page 156 of 320
“Send PPI Header” and “Send PAI Header” cannot be enabled at the
same time. Only one of the two headers is allowed to be contained in the
SIP INVITE message.
Send PAI Header
If enabled, the SIP INVITE message sent to the trunk will contain PAI
(P-Asserted-Identity) header. The default setting is “No”.
Note:
“Send PPI Header” and “Send PAI Header” cannot be enabled at the
same time. Only one of the two headers is allowed to be contained in the
SIP INVITE message.
Outbound Proxy Support
Select to enable outbound proxy in this trunk. The default setting is "No".
Outbound Proxy
When outbound proxy support is enabled, enter the IP address or URL of
the outbound proxy.
DID Mode
Configure where to get the destination ID of an incoming SIP call, from
SIP Request-line or To-header. The default is set to "Request-line".
DTMF Mode
Configure the default DTMF mode when sending DTMF on this trunk.
 Default: The global setting of DTMF mode will be used. The global
setting for DTMF Mode setting is under web UI->PBX->SIP
Settings->ToS.
 RFC2833: Send DTMF using RFC2833.
 Info: Send DTMF using SIP INFO message.
 Inband: Send DTMF using inband audio. This requires 64 bit codec,
i.e., PCMU and PCMA.
 Auto: Send DTMF using RFC2833 if offered. Otherwise, inband will
be used.
Enable Qualify
If enabled, the UCM6200 will regularly send SIP OPTIONS to the device
to check if the device is still online. The default setting is "No".
Qualify Timeout
When "Enable Qualify" option is set to "Yes", configure the timeout (in ms)
for the Qualify SIP message. If no response is received within the timeout,
the device is considered offline. The default setting is 1000ms.
Qualify Frequency
When "Enable Qualify" option is set to "Yes", configure the interval (in
seconds) of the SIP OPTIONS message sent to the device to check if the
device is still online. The default setting is 60 seconds.
Maximum Number of Call
Lines
The maximum number of concurrent calls using the trunk. The default
settings 0, which means no limit.
Fax Mode
Select Fax mode. 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