Grandstream Networks UCM6102 User Manual page 120

Keep Trunk CID
Disable This Trunk
Caller ID
CallerID Name
Username
Password
Codec Preference
Enable Qualify
Qualify Timeout
Qualify Frequency
Maximum Number of Call
Lines
Fax Detection
Firmware Version 1.0.7.11
trunk.
When enabled, it can avoid overridden by extension's CID if the
extension has CID configured. The default setting is enabled.
If selected, the trunk will be disabled.
Configure the Caller ID. This is the number that the trunk will try to use
when making outbound calls. For some providers, it might not be
possible to set the CallerID with this option and this option will be
ignored.
When making outgoing calls, the following rules are used to determine
which CallerID will be used if they exist:

The CallerID configured for the extension will be looked up first.

If no CallerID configured for the extension, the CallerID configured
for the trunk will be used.

If the above two are missing, the "Global Outbound CID" defined in
Web GUI->PBX->Internal Options->General will be used.
Configure the name of the caller to be displayed when the extension has
no CallerID Name configured.
Enter the username to register to the trunk from the provider.
Enter the password to register to the trunk from the provider.
Select audio and video codec for the VoIP trunk. The available codecs
are: PCMU, PCMA, GSM, AAL2-G.726-32, G.726, G.722, G.729, G.723,
ILBC, ADPCM, H.264, H.263, H.263p.
If enabled, the UCM6100 will regularly send SIP OPTIONS to the device
to check if the device is still online. The default setting is "No".
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.
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.
The maximum number of concurrent calls using the trunk. The default
settings 0, which means no limited.
Enable to detect Fax signal from the trunk during the call and send the
received Fax to the default Email address in Fax setting page under web
GUI->PBX->Internal Options->Fax/T.38.
Note:
If enabled, Fax Pass-through cannot be used.
UCM6100 Series IP PBX User Manual Page 118 of 233