Grandstream UCM6510 User Manual - Manual (Page 170)

Firmware Version 1.0.2.5 UCM6510 IP PBX User Manual Page 169 of 313
only). The default setting is disabled. The recording files can be accessed
under web GUI->CDR->Recording Files.
Advanced Settings
Codec Preference
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.
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 UCM6510 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 limite.
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
configured for this extension. If no Email address can be found for the
user, the Fax will be sent to the default Email address configured in
Fax setting page under web UI->PBX->Internal Options->Fax/T.38.
SRTP Enable SRTP for the VoIP trunk. The default setting is "No".
Sync LDAP Enable
If enabled, the local UCM6510 will automatically provide and update the
local LDAP contacts to the remote UCM6510 SIP peer trunk. In order to
ensure successful synchronization, the remote UCM6510 peer also